Converters
Converters
236entries
Browse by conversion type or jump to a familiar category.
Unit conversions
Physical units, ratio expressions, and relationships with explicit conditions.
187 entries
Browse unit definitions → Unit conversions →Numbers & encoding
Number bases, fractions, numeric representations, and character encoding.
30 entries
Color
Color representations and color-space tools.
8 entries
Images
Image formats and browser-based image tools.
11 entries
Unit conversions
Physical units, ratio expressions, and relationships with explicit conditions.
Length converters
Meters, feet, inches, miles, and related length units.
- Centimeters to Feet conversionCentimeters to Feet conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Centimeters to Inches conversionConvert between centimeters (cm) and inches (in). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Centimeters to Millimeters conversionCentimeters to Millimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Feet to Centimeters conversionFeet to Centimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Feet to Inches conversionConvert feet (ft) to inches (in). Exact factor: 1 ft = 12 in. Formula in = ft × 12, worked examples, and a conversion chart. Runs locally in your browser.
- Feet to Meters conversionFeet to Meters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Feet to Millimeters conversionFeet to Millimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Height ConverterConvert height between feet+inches and meters+centimeters. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Inches to Centimeters conversionInches to Centimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Inches to Feet conversionConvert inches (in) to feet (ft). Exact factor: 1 ft = 12 in. Formula ft = in ÷ 12, worked examples, and a conversion chart. Runs locally in your browser.
- Inches to Meters conversionConvert inches (in) to meters (m). Exact factor: 1 in = 0.0254 m. Formula m = in × 0.0254, worked examples, and a conversion chart. Fast and free.
- Inches to Millimeters conversionInches to Millimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilometers to Miles conversionConvert kilometers (km) to miles (mi). Exact factor: 1 mi = 1.609344 km. Formula mi = km ÷ 1.609344, worked examples, and a chart. Fast and free.
- Meters to Feet conversionMeters to Feet conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Meters to Inches conversionConvert meters (m) to inches (in). Exact factor: 1 in = 0.0254 m. Formula in = m ÷ 0.0254, worked examples, and a conversion chart. Fast and free.
- Miles to Kilometers conversionConvert miles (mi) to kilometers (km). Exact factor: 1 mi = 1.609344 km. Formula km = mi × 1.609344, worked examples, and a chart. Fast and free.
- Millimeters to Centimeters conversionMillimeters to Centimeters conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Millimeters to Feet conversionMillimeters to Feet conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Millimeters to Inches conversionMillimeters to Inches conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
Weight converters
Kilograms, pounds, ounces, and mass conversions.
- Grams to Kilograms conversionConvert grams (g) to kilograms (kg). Exact SI: 1 g = 0.001 kg. Formula, examples, and g↔kg chart. Switch g → kg or kg → g. Runs locally in your browser.
- Grams to Milligrams conversionConvert grams (g) to milligrams (mg). Exact SI: 1 g = 1000 mg. Formula, examples, and g↔mg chart. Switch g → mg or mg → g. Runs locally in your browser.
- Grams to Ounces conversionConvert grams (g) to ounces (oz). Exact: 1 oz = 28.349523125 g, so 1 g ≈ 0.03527396195 oz. Free online tool — no sign-up. Runs locally in your browser.
- Grams to Pounds conversionConvert grams (g) to pounds (lb). Exact: 1 lb = 453.59237 g, so 1 g ≈ 0.00220462262 lb. Free online tool — no sign-up. Runs locally in your browser.
- Kilograms to Grams conversionConvert kilograms (kg) to grams (g). Exact SI: 1 kg = 1000 g. Formula, examples, and kg↔g chart. Switch kg → g or g → kg. Runs locally in your browser.
- Kilograms to Milligrams conversionKilograms to Milligrams conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilograms to Ounces conversionConvert kilograms (kg) to ounces (oz). 1 kg ≈ 35.27396195 oz (avoirdupois). Formula, examples, and kg↔oz chart. Switch kg → oz or oz → kg. Try it free.
- Kilograms to Pounds conversionConvert kilograms (kg) to pounds (lb). Exact avoirdupois factor: 1 kg = 2.20462262185 lb. Free online tool — no sign-up. Runs locally in your browser.
- Kilograms to Tons conversionConvert kilograms (kg) to metric tons (t). Exact: 1 t = 1000 kg, so 1 kg = 0.001 t. Formula, examples, and kg↔t chart. Runs locally in your browser.
- Micrograms to Milligrams conversionMicrograms to Milligrams conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Milligrams to Grams conversionConvert milligrams (mg) to grams (g). Exact SI: 1 mg = 0.001 g. Formula, examples, and mg↔g chart. Switch mg → g or g → mg. Runs locally in your browser.
- Milligrams to Kilograms conversionMilligrams to Kilograms conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Milligrams to Micrograms conversionMilligrams to Micrograms conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Ounces to Grams conversionConvert ounces (oz) to grams (g). Exact: 1 oz = 28.349523125 g. Formula, examples, and oz↔g chart. Switch oz → g or g → oz. Runs locally in your browser.
- Ounces to Kilograms conversionOunces to Kilograms conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Ounces to Pounds conversionOunces to Pounds conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Pounds to Grams conversionConvert pounds (lb) to grams (g). Exact: 1 lb = 453.59237 g. Free online tool — no sign-up. Built for quick, accurate checks. Runs locally in your browser.
- Pounds to Kilograms conversionConvert pounds (lb) to kilograms (kg). Exact avoirdupois factor: 1 lb = 0.45359237 kg. Free online tool — no sign-up. Runs locally in your browser.
- Pounds to Ounces conversionConvert pounds (lb) to ounces (oz). Exact: 1 lb = 16 oz. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Pounds to Stones conversionConvert pounds (lb) to stones (st). Exact: 1 st = 14 lb, so 1 lb ≈ 0.07142857 st. Formula, body-weight examples, and lb↔st chart. No account needed.
- Pounds to Tons conversionConvert pounds (lb) to metric tons (t). 1 lb = 0.00045359237 t. Formula, examples, and lb↔t chart. Switch lb → t or t → lb. Runs locally in your browser.
- Stones to Pounds conversionConvert stones (st) to pounds (lb). Exact: 1 st = 14 lb. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Tons to Kilograms conversionConvert metric tons (t) to kilograms (kg). Exact: 1 t = 1000 kg. Formula, examples, and t↔kg chart. Switch t → kg or kg → t. Runs locally in your browser.
- Tons to Pounds conversionTons to Pounds conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
Temperature converters
Celsius, Fahrenheit, Kelvin, and Rankine.
- Celsius to Fahrenheit conversionCelsius to Fahrenheit conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Celsius to Kelvin conversionCelsius to Kelvin conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Fast and free.
- Celsius to Rankine conversionCelsius to Rankine conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Fahrenheit to Celsius conversionConvert Fahrenheit (°F) to Celsius (°C). Formula °C = (°F − 32) × 5/9, oven & weather examples, chart, and FAQ. Switch °F → °C or °C → °F. Try it free.
- Fahrenheit to Kelvin conversionFahrenheit to Kelvin conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Fahrenheit to Rankine conversionFahrenheit to Rankine conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kelvin to Celsius conversionConvert Kelvin (K) to Celsius (°C). Exact formula °C = K − 273.15, absolute zero & freeze/boil examples, chart, FAQ. Runs locally in your browser.
- Kelvin to Fahrenheit conversionConvert Kelvin (K) to Fahrenheit (°F). Formula °F = K × 9/5 − 459.67, examples, reference table, FAQ. Switch K → °F or °F → K. Works offline-ready.
- Kelvin to Rankine conversionConvert Kelvin (K) to Rankine (°R). Formula °R = K × 9/5, absolute-scale notes, examples, FAQ. Free online tool — no sign-up. Runs locally in your browser.
- Rankine to Celsius conversionConvert Rankine (°R) to Celsius (°C). Formula °C = (°R − 491.67) × 5/9, examples, table, FAQ. Free online tool — no sign-up. Runs locally in your browser.
- Rankine to Fahrenheit conversionConvert Rankine (°R) to Fahrenheit (°F). Exact formula °F = °R − 459.67, examples, table, FAQ. Free online tool — no sign-up. Runs locally in your browser.
- Rankine to Kelvin conversionConvert Rankine (°R) to Kelvin (K). Exact formula K = °R × 5/9, examples, freeze/boil table, FAQ. Switch °R → K or K → ° Try it free. Try it free.
Power converters
Watts, kilowatts, horsepower, BTU/h, and dBm.
- BHP to Kilowatts conversionConvert brake horsepower (BHP) to kilowatts (kW). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- BTU/hr to Kilowatts conversionConvert BTU per hour to kilowatts (kW). Factor: 1 BTU/hr ≈ 0.00029307107 kW. Formula, examples, and chart. Switch BTU/h → kW or kW → BTU/h. Try it free.
- BTU/hr to Refrigeration Tons conversionConvert BTU per hour to refrigeration tons (RT). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- BTU/hr to Watts conversionBTU/hr to Watts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- dBm ConverterConvert between dBm, milliwatts, and watts. Formulas: mW = 10^(dBm/10), dBm = 10×log10(mW). Free online tool — no sign-up. Runs locally in your browser.
- dBm to Milliwatts conversionConvert dBm to milliwatts (mW). Formula: mW = 10^(dBm/10). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- dBm to Watts conversionConvert dBm to watts (W). Formula: W = 10^((dBm−30)/10). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Gigawatts to Watts conversionGigawatts to Watts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Horsepower to Kilowatts conversionHorsepower to Kilowatts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Horsepower to Watts conversionHorsepower to Watts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilowatts to BHP conversionConvert kilowatts (kW) to brake horsepower (BHP). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Kilowatts to BTU/hr conversionKilowatts to BTU/hr conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilowatts to Horsepower conversionKilowatts to Horsepower conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilowatts to Megawatts conversionConvert kilowatts (kW) to megawatts (MW). Exact factor: 1 MW = 1000 kW. Formula MW = kW ÷ 1000, examples, and chart. Runs locally in your browser.
- Kilowatts to Milliwatts conversionConvert kilowatts (kW) to milliwatts (mW). Exact factor: 1 kW = 1,000,000 mW. Formula mW = kW × 10⁶, examples, and chart. Runs locally in your browser.
- Kilowatts to Refrigeration Tons conversionConvert kilowatts (kW) to refrigeration tons (RT). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Kilowatts to Watts conversionKilowatts to Watts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Megawatts to Kilowatts conversionConvert megawatts (MW) to kilowatts (kW). Exact factor: 1 MW = 1000 kW. Formula kW = MW × 1000, examples, and chart. Runs locally in your browser.
- Megawatts to Watts conversionConvert megawatts (MW) to watts (W). Exact factor: 1 MW = 1,000,000 W. Formula W = MW × 10⁶, examples, and chart. Switch MW → W or W → MW. Try it free.
- Milliwatts to dBm conversionConvert milliwatts (mW) to dBm. Formula: dBm = 10 × log10(P_mW). Works offline-ready. Runs locally in your browser. Free online tool — no sign-up.
- Milliwatts to Kilowatts conversionConvert milliwatts (mW) to kilowatts (kW). Exact factor: 1 kW = 1,000,000 mW. Formula kW = mW ÷ 10⁶, examples, and chart. Runs locally in your browser.
- Milliwatts to Watts conversionMilliwatts to Watts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Refrigeration Tons to BTU/hr conversionConvert refrigeration tons (RT) to BTU per hour. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Refrigeration Tons to Kilowatts conversionConvert refrigeration tons (RT) to kilowatts (kW). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Watts to BTU/hr conversionConvert watts (W) to BTU per hour. Factor: 1 W ≈ 3.412142 BTU/hr. Formula, examples, and chart. Switch W → BTU/h or BTU/h → W. Works offline-ready.
- Watts to dBm conversionConvert with the free Watt to dBm on CalculatorX. Exact factors, formulas, worked examples, and a conversion chart. Runs locally in your browser.
- Watts to Gigawatts conversionWatts to Gigawatts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Watts to Horsepower conversionConvert watts (W) to horsepower (hp). Mechanical: hp = W ÷ 745.699872. Also electrical and metric hp, examples, and chart. Runs locally in your browser.
- Watts to Kilowatts conversionConvert watts (W) to kilowatts (kW). Exact factor: 1 kW = 1000 W. Formula kW = W ÷ 1000, worked examples, and a chart. Runs locally in your browser.
- Watts to Megawatts conversionConvert watts (W) to megawatts (MW). Exact factor: 1 MW = 1,000,000 W. Formula MW = W ÷ 10⁶, examples, and chart. Switch W → MW or MW → W. Try it free.
- Watts to Milliwatts conversionWatts to Milliwatts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
Energy converters
Joules, calories, watt-hours, and electronvolts.
- BTU to Joules conversionConvert BTU (IT) to joules (J). Factor: 1 BTU ≈ 1055.05585 J. Formula, HVAC examples, and chart. Switch BTU → J or J → BTU. Runs locally in your browser.
- BTU to Kilojoules conversionConvert BTU (IT) to kilojoules (kJ). Factor: 1 BTU ≈ 1.05505585 kJ. Formula, examples, and chart. Switch BTU → kJ or kJ → BTU. Works offline-ready.
- BTU to kWh conversionConvert BTU (IT) to kilowatt-hours (kWh). Factor: 1 BTU ≈ 0.000293071069 kWh. Formula, HVAC examples, chart. Switch BTU → kWh or kWh → BTU. Try it free.
- Calories to Joules conversionConvert calories (cal) to joules (J). Thermochemical: 1 cal ≈ 4.184 J. Clarifies food Calorie vs small calorie; formula and chart. Fast and free.
- Calories to kcal conversionCalories to kcal conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Calories to Kilojoules (kJ) conversionConvert calories (cal) to kilojoules (kJ). Thermochemical: 1 cal ≈ 0.004184 kJ. Clarifies food Calorie vs small calorie. Runs locally in your browser.
- Electron-volts to joules conversionConvert electron-volts (eV) to joules (J). Exact CODATA: 1 eV = 1.602176634×10⁻¹⁹ J. Free online tool — no sign-up. Runs locally in your browser.
- eV to GeV conversionConvert electron-volts (eV) to gigaelectron-volts (GeV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- eV to keV conversionConvert electron-volts (eV) to kiloelectron-volts (keV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- eV to MeV conversionConvert electron-volts (eV) to megaelectron-volts (MeV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- GeV to eV conversionConvert gigaelectron-volts (GeV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Joules to BTU conversionConvert joules (J) to BTU (IT). Factor: 1 BTU ≈ 1055.05585 J. Formula, examples, and chart. Free online tool — no sign-up. Runs locally in your browser.
- Joules to calories conversionConvert joules (J) to calories (cal). Thermochemical: 1 cal ≈ 4.184 J. Clarifies food Calorie vs small calorie; formula and chart. Fast and free.
- Joules to electron-volts conversionConvert joules (J) to electron-volts (eV). Exact: 1 eV = 1.602176634×10⁻¹⁹ J. Switch J → eV or eV → J. Runs locally in your browser. Try it free.
- Joules to kilocalories conversionConvert joules (J) to kilocalories (kcal). Factor: 1 kcal ≈ 4184 J. Clarifies food Calorie; formula and chart. Switch J → kcal or kcal → J. Try it free.
- Joules to Kilojoules conversionJoules to Kilojoules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Joules to kWh conversionConvert joules (J) to kilowatt-hours (kWh). Exact: 1 kWh = 3,600,000 J. Formula, examples, chart. Switch J → kWh or kWh → J. Runs locally in your browser.
- kcal to calories conversionConvert kilocalories (kcal) to calories (cal). Exact: 1 kcal = 1000 cal. Clarifies food Calorie vs small calorie. Switch kcal → cal or cal → kcal.
- kcal to kilojoules conversionConvert kilocalories (kcal) to kilojoules (kJ). Exact thermochemical: 1 kcal = 4.184 kJ. Free online tool — no sign-up. Runs locally in your browser.
- keV to eV conversionConvert kiloelectron-volts (keV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Kilocalories to joules conversionKilocalories to joules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to BTU conversionConvert kilojoules (kJ) to BTU (IT). Factor: 1 kJ ≈ 0.947817 BTU. Formula, examples, and chart. Switch kJ → BTU or BTU → kJ. Runs locally in your browser.
- Kilojoules to Calories conversionKilojoules to Calories conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to Joules conversionKilojoules to Joules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to kilocalories conversionKilojoules to kilocalories conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- kWh to BTU conversionConvert kilowatt-hours (kWh) to BTU (IT). Factor: 1 kWh ≈ 3412.141642 BTU. Formula, examples, chart. Switch kWh → BTU or BTU → kWh. Fast and free.
- kWh to Joules conversionConvert kilowatt-hours (kWh) to joules (J). Exact: 1 kWh = 3,600,000 J. Formula, examples, chart. Switch kWh → J or J → kWh. Runs locally in your browser.
- MeV to eV conversionConvert megaelectron-volts (MeV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
Frequency converters
Hz, kHz, MHz, GHz, and RPM.
- 1 GHz to Hz conversion1 gigahertz (GHz) equals exactly 1 000 000 000 hertz (Hz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- 1 GHz to MHz conversion1 gigahertz (GHz) equals exactly 1000 megahertz (MHz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- 1 kHz to Hz conversion1 kilohertz (kHz) equals exactly 1000 hertz (Hz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- 1 MHz to Hz conversion1 megahertz (MHz) equals exactly 1 000 000 hertz (Hz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- 1 MHz to kHz conversion1 megahertz (MHz) equals exactly 1000 kilohertz (kHz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- 100 MHz to Hz conversion100 megahertz (MHz) equals exactly 100 000 000 hertz (Hz) or 10⁸ Hz. Definition, formula, nearby values, and a quick chart. Runs locally in your browser.
- Gigahertz to Hertz conversionGigahertz to Hertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Gigahertz to Kilohertz conversionGigahertz to Kilohertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Gigahertz to Megahertz conversionGigahertz to Megahertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Hertz to Gigahertz conversionHertz to Gigahertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Hertz to Kilohertz conversionHertz to Kilohertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Hertz to Megahertz conversionConvert hertz (Hz) to megahertz (MHz). Exact factor: 1 MHz = 1 000 000 Hz. Formula MHz = Hz ÷ 1e6, worked examples, and a chart. No account needed.
- Hertz to Radian per Second conversionConvert frequency in hertz (Hz) to angular frequency in rad/s. Use the exact 2π relation in either direction and see worked examples.
- Hertz to Terahertz conversionConvert hertz (Hz) to terahertz (THz). Exact factor: 1 THz = 1e12 Hz. Formula THz = Hz ÷ 1e12, worked examples, and a chart. Runs locally in your browser.
- Kilohertz to Gigahertz conversionKilohertz to Gigahertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilohertz to Hertz conversionKilohertz to Hertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilohertz to Megahertz conversionKilohertz to Megahertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Megahertz to Gigahertz conversionMegahertz to Gigahertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Megahertz to Hertz conversionConvert megahertz (MHz) to hertz (Hz). Exact factor: 1 MHz = 1 000 000 Hz. Formula Hz = MHz × 1e6, worked examples, and a chart. No account needed.
- Megahertz to Kilohertz conversionMegahertz to Kilohertz conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Radian per Second to Hertz conversionConvert angular frequency in rad/s to hertz (Hz). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Terahertz to Hertz conversionConvert terahertz (THz) to hertz (Hz). Exact factor: 1 THz = 1e12 Hz. Formula Hz = THz × 1e12, worked examples, and a chart. Runs locally in your browser.
Voltage converters
Volts, millivolts, kilovolts, and related units.
- Gigavolts to Volts conversionGigavolts to Volts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilovolts to Volts conversionKilovolts to Volts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Megavolts to Volts conversionConvert megavolts (MV) to volts (V). Exact factor: 1 MV = 1,000,000 V. Formula V = MV × 1e6, worked examples, and conversion chart. Fast and free.
- Microvolts to Volts conversionConvert microvolts (μV) to volts (V). Exact factor: 1 μV = 1e-6 V. Formula V = μV ÷ 1e6, worked examples, and conversion chart. Switch µV → V or V → µV.
- Millivolts to Volts conversionMillivolts to Volts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Volts to Gigavolts conversionConvert volts (V) to gigavolts (GV). Exact factor: 1 GV = 1e9 V. Formula GV = V ÷ 1e9, worked examples, and conversion chart. Runs locally in your browser.
- Volts to Kilovolts conversionVolts to Kilovolts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Volts to Megavolts conversionConvert volts (V) to megavolts (MV). Exact factor: 1 MV = 1,000,000 V. Formula MV = V ÷ 1e6, worked examples, and conversion chart. Fast and free.
- Volts to Microvolts conversionConvert volts (V) to microvolts (μV). Exact factor: 1 V = 1,000,000 μV. Formula μV = V × 1e6, worked examples, and conversion chart. Try it free.
- Volts to Millivolts conversionVolts to Millivolts conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
Charge converters
Coulombs, mAh, Ah, and elementary charge.
- Ampere-hours to Coulombs conversionConvert ampere-hours (Ah) to coulombs (C). Exact factor: 1 Ah = 3600 C. Formula C = Ah × 3600, worked examples, and conversion chart. Try it free.
- Ampere-hours to Milliampere-hours conversionConvert ampere-hours (Ah) to milliampere-hours (mAh). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Coulombs to Ampere-hours conversionConvert coulombs (C) to ampere-hours (Ah). Exact factor: 1 Ah = 3600 C. Formula Ah = C ÷ 3600, worked examples, and conversion chart. Switch C → Ah or Ah.
- Coulombs to Electron charge conversionConvert coulombs (C) to elementary charges (e). Exact SI value: e = 1.602176634×10⁻¹⁹ C. Free online tool — no sign-up. Runs locally in your browser.
- Coulombs to Microcoulombs conversionConvert coulombs (C) to microcoulombs (μC). Exact factor: 1 μC = 1e-6 C. Formula μC = C × 1e6, worked examples, and conversion chart. Switch C → µC or µC.
- Coulombs to Millicoulombs conversionCoulombs to Millicoulombs conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Coulombs to Nanocoulombs conversionConvert coulombs (C) to nanocoulombs (nC). Exact factor: 1 nC = 1e-9 C. Formula nC = C × 1e9, worked examples, and conversion chart. Try it free.
- Coulombs to Picocoulombs conversionCoulombs to Picocoulombs conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Electron charge to Coulombs conversionConvert elementary charges (e) to coulombs (C). Exact SI value: e = 1.602176634×10⁻¹⁹ C. Free online tool — no sign-up. Runs locally in your browser.
- Microcoulombs to Coulombs conversionConvert microcoulombs (μC) to coulombs (C). Exact factor: 1 μC = 1e-6 C. Formula C = μC × 1e-6, worked examples, and conversion chart. Try it free.
- Milliampere-hours to Ampere-hours conversionConvert milliampere-hours (mAh) to ampere-hours (Ah). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Millicoulombs to Coulombs conversionConvert millicoulombs (mC) to coulombs (C). Exact factor: 1 mC = 0.001 C. Formula C = mC × 0.001, worked examples, and conversion chart. Try it free.
- Nanocoulombs to Coulombs conversionConvert nanocoulombs (nC) to coulombs (C). Exact factor: 1 nC = 1e-9 C. Formula C = nC × 1e-9, worked examples, and conversion chart. Try it free.
- Picocoulombs to Coulombs conversionPicocoulombs to Coulombs conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
Electrical converters
Capacity, current scale, energy/time, and dB. Power and Ohm’s-law tools are under Electrical calculators.
- Ah to mAh conversionConvert ampere-hours (Ah) to milliampere-hours (mAh). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Amps to Milliamps conversionAmps to Milliamps conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Fast and free.
- Decibel (dB) conversionConvert power and amplitude ratios to decibels. Power: dB = 10·log₁₀(P₂/P₁). Amplitude/voltage: dB = 20·log₁₀(V₂/V₁). Runs locally in your browser.
- Joules to Kilowatts conversionCalculate average power in kW from energy in J and an explicit duration in seconds. Runs locally in your browser.
- Kilojoules to Kilowatts conversionCalculate average power in kW from energy in kJ and an explicit duration in seconds. Runs locally in your browser.
- Kilojoules to Watts conversionCalculate average power in W from energy in kJ and an explicit duration in seconds. Runs locally in your browser.
- Kilowatts to Joules conversionCalculate energy in J from average power in kW and an explicit duration in seconds. Runs locally in your browser.
- Kilowatts to Kilojoules conversionCalculate energy in kJ from average power in kW and an explicit duration in seconds. Runs locally in your browser.
- Kilowatts to Watt-hours conversionCalculate energy in Wh from average power in kW and an explicit duration in hours. Runs locally in your browser.
- Milliamp-hours to Amp-hours conversionConvert milliamp-hours (mAh) to amp-hours (Ah). Exact factor: 1 Ah = 1000 mAh. Formula, battery examples, and a chart. Runs locally in your browser.
- Milliamps to Amps conversionConvert milliamps (mA) to amps (A). Exact factor: 1 A = 1000 mA. Formula A = mA ÷ 1000, examples, and a conversion chart. Runs locally in your browser.
- Watt-hours to Kilowatts conversionCalculate average power in kW from energy in Wh and an explicit duration in hours. Runs locally in your browser.
- Watt-hours to Watts conversionCalculate average power in W from energy in Wh and an explicit duration in hours. Runs locally in your browser.
- Watts to Kilojoules conversionCalculate energy in kJ from average power in W and an explicit duration in seconds. Runs locally in your browser.
- Watts to Watt-hours conversionCalculate energy in Wh from average power in W and an explicit duration in hours. Runs locally in your browser.
Angles & ratio expressions
Angle representations and ratio scales. Additional conditions may be required.
- Decimal degrees to DMSConvert decimal degrees to degrees, minutes, seconds. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Degrees to Radians conversionConvert degrees to radians. Exact relation: π rad = 180°. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- DMS to decimal degreesConvert degrees, minutes, seconds (DMS) to decimal degrees. Free online tool — no sign-up. Mobile-friendly and privacy-first. Runs locally in your browser.
- Percent to ppm ConversionConvert percent (%) to parts-per million (ppm). Exact: 1% = 10 000 ppm. Formula, worked examples, and a conversion chart. Runs locally in your browser.
- ppb to ppm conversionConvert parts-per billion (ppb) to parts-per million (ppm). Free online tool — no sign-up. Mobile-friendly and privacy-first. Runs locally in your browser.
- ppm converterConvert with the free ppm Converter on CalculatorX. Exact factors, formulas, worked examples, and a conversion chart. Runs locally in your browser.
- ppm to percent conversionConvert parts-per million (ppm) to percent (%). Exact: 1 ppm = 0.0001%. Formula ppm ÷ 10 000, examples, and a chart. Runs locally in your browser.
- ppm to ppb conversionConvert parts-per million (ppm) to parts-per billion (ppb). Free online tool — no sign-up. Mobile-friendly and privacy-first. Runs locally in your browser.
- ppm to ppt conversionConvert parts-per million (ppm) to parts-per trillion (ppt). Free online tool — no sign-up. Built for quick, accurate checks. Runs locally in your browser.
- ppt to ppm conversionConvert parts-per trillion (ppt) to parts-per million (ppm). Free online tool — no sign-up. Built for quick, accurate checks. Runs locally in your browser.
- Radians to Degrees conversionConvert radians to degrees. Exact: π rad = 180°. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
Chemistry converters
PPM, percent, and related chemistry units.
Numbers & encoding
Number bases, fractions, numeric representations, and character encoding.
Number system converters
Binary, hex, decimal, octal, fractions, and angles.
- ASCII text to binaryConvert ASCII text to binary. Runs locally in your browser. Free online tool — no sign-up. Clear formulas and worked examples. No account needed.
- ASCII to Hex converterConvert ASCII text to hexadecimal. Each character → code point → two hex digits. Positional base-16 method, examples, and printable chart. Try it free.
- ASCII, Hex, Binary, Decimal converterASCII, Hex, Binary, Decimal converter with clear formulas, units, and examples. Runs locally in your browser. Free online tool — no sign-up.
- Binary convertBinary number conversion hub: convert base-2 to decimal, hexadecimal, and ASCII. Positional notation overview and links to dedicated calculators.
- Binary converterConvert with the free Binary Converter on CalculatorX. Exact factors, formulas, worked examples, and a conversion chart. Runs locally in your browser.
- Binary to ASCII textConvert binary to ASCII text. Split into 8-bit bytes, interpret with positional base-2, map code points to characters. Runs locally in your browser.
- Binary to Decimal converterBinary to Decimal converter. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Binary to Hex converterBinary to Hex converter. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Date to Roman numeralsConvert calendar dates to Roman numerals. Convert year, month, and day integers with standard Roman rules (I, V, X, L, C, D, M). No account needed.
- Decimal convertDecimal (base 10) conversion hub: to binary, octal, hex, fraction, and percent. Runs locally in your browser. Free online tool — no sign-up. Try it free.
- Decimal to Binary converterConvert decimal (base 10) to binary (base 2). Runs locally in your browser. Free online tool — no sign-up. Clear formulas and worked examples. Try it free.
- Decimal to Fraction conversionDecimal to Fraction conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Decimal to Hex converterConvert decimal (base 10) to hexadecimal (base 16). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Decimal to Octal converterConvert decimal (base 10) to octal (base 8). Use repeated division by 8 or binary 3-bit grouping. Examples and conversion table. Works offline-ready.
- Decimal to percent conversionConvert decimals to percents. Formula: percent = decimal × 100%. Worked examples, mental tips, and a conversion table. Runs locally in your browser.
- Fraction convertFraction conversion hub: fraction to decimal (divide) and fraction to percent (×100%). Free online tool — no sign-up. Runs locally in your browser.
- Fraction to Decimal conversionConvert fractions to decimals. Method 1: scale denominator to a power of 10. Method 2: divide numerator by denominator. Runs locally in your browser.
- Fraction to percent conversionConvert fractions to percents. Formula: (a/b)×100%. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Hex convertHex convert: convert units with clear factors and examples. Fast local calculation on CalculatorX. Runs locally in your browser. Try it free.
- Hex to ASCII text converterConvert hexadecimal to ASCII text. Pair hex digits into bytes, convert with base-16 positional notation, map to characters. Runs locally in your browser.
- Hex to Binary converterConvert hexadecimal to binary. Each hex digit expands to a 4-bit nibble. Digit map, worked examples, and conversion table. Runs locally in your browser.
- Hex to Decimal converterHex to Decimal converter. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Hex, decimal, octal, binary converterConvert among hexadecimal, decimal, octal, and binary. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Number base converterConvert integers between number bases (binary, octal, decimal, hex, and more). Use positional notation and divide-by-radix; examples for 2, 8, 10, 16.
- Octal to Decimal converterConvert octal (base 8) to decimal (base 10). Formula: sum digit × 8ⁿ. Runs locally in your browser. Free online tool — no sign-up. Fast and free.
- Percent ConvertConvert percentages to decimals, fractions, and ppm. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Percent to decimal conversionConvert percent (%) to a decimal. Formula: decimal = percent ÷ 100. Worked examples and a percent↔decimal chart. Switch % → decimal or decimal → %.
- Percent to fraction conversionPercent to fraction conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Roman numerals converterConvert between roman numerals and numbers. Runs locally in your browser. Free online tool — no sign-up. Clear formulas and worked examples. Try it free.
- Scientific Notation ConverterScientific Notation Converter with clear formulas, units, and examples. Runs locally in your browser. Free online tool — no sign-up. Try it free.
Color
Color representations and color-space tools.
Color converters
RGB, HEX, and related color conversions.
- CMYK to RGB color conversionCMYK to RGB color conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Fast and free.
- Hex to RGB Color ConversionHex to RGB Color Conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- HSL to RGB color conversionConvert HSL (hue °, saturation %, lightness %) to RGB (0–255). Standard chroma formulas, examples, and color chart. Runs locally in your browser.
- HSV to RGB color conversionConvert HSV/HSB (hue °, saturation %, value %) to RGB (0–255). Standard chroma formulas, examples, and color chart. Runs locally in your browser.
- RGB to CMYK color conversionConvert RGB (0–255) to CMYK. Approximate device-independent formulas, print notes, examples, and color chart. Runs locally in your browser. Try it free.
- RGB to Hex color conversionRGB to Hex color conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- RGB to HSL color conversionConvert RGB (0–255) to HSL (hue °, saturation %, lightness %). Standard formulas, worked examples, and color chart. Runs locally in your browser.
- RGB to HSV color conversionConvert RGB (0–255) to HSV/HSB (hue °, saturation %, value %). Standard formulas, examples, and color chart. Runs locally in your browser. Try it free.
Images
Image formats and browser-based image tools.
Image converters
JPG, PNG, GIF, BMP, and local image conversion.
- BMP to JPG Image ConversionConvert BMP to JPG Open a bitmap, download JPG. Uncompressed BMP vs lossy JPEG size and quality notes. Runs locally in your browser. Try it free.
- Color image to black and white converterColor image to black and white converter. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- GIF to JPG Image ConversionConvert GIF to JPG locally. Open a file, download JPG. Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- GIF to PNG Image ConversionConvert GIF to PNG Open locally, download PNG. Palette vs lossless, animation frames, and quality notes. Runs locally in your browser. Try it free.
- JPG to BMP Image ConversionJPG to BMP Image Conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- JPG to GIF Image ConversionConvert JPG to GIF Open locally, download. Free online tool — no sign-up. Mobile-friendly and privacy-first. Runs locally in your browser. Try it free.
- JPG to PDF image converterPrepare JPG images for PDF use. Local open/download workflow, JPG vs PDF differences, multi-page notes, and quality tips. Runs locally in your browser.
- JPG to PNG image converterLossless vs lossy notes and when to use each format. Runs locally in your browser. Free online tool — no sign-up. Clear formulas and worked examples.
- PNG to GIF Image ConversionConvert PNG to GIF locally in your browser. Open a file and download. Palette limits, transparency, and when GIF makes sense. Runs locally in your browser.
- PNG to JPG Image ConversionConvert with the free PNG to JPG on CalculatorX. Runs locally in your browser. Free online tool — no sign-up. Clear formulas and worked examples.
- PNG to PDF image converterPrepare PNG images for PDF use. Local open/save workflow, PNG vs PDF differences, multi-page notes, and practical tips. Runs locally in your browser.