Math calculators
Geometry Calculators
17 tools
Pythagorean theorem, general triangles, circles, conics, and plane figures. Vectors, solids, and analytic geometry have their own Families. Tools may appear in more than one topic.
Popular in Geometry
Featured tools from the Family registry.
- Pythagorean Theorem Calculator Solve a right triangle with a² + b² = c². Enter any two of legs a, b and hypotenuse c to find the third side, plus area and perimeter. Try it free.
- Triangle Solver Solve triangle sides, angles, area and perimeter with SSS, SAS, ASA, AAS or SSA. Inspect every solution, numerical limits and complete shareable result exports.
- Circle Calculator Calculate circle radius, diameter, circumference, area, arc length, and sector area. Explore formulas, worked examples, units, and mathematical sources.
- Plane Geometry Calculator Calculate plane shape area and perimeter with full results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Conic Section Calculator Explore ellipse, parabola and hyperbola geometry: calculate foci, eccentricity and equations, inspect numerical limits, and share or export complete results.
All Geometry
Every live calculator in this family. URLs stay /calc/math/…
- Annulus Calculator Calculate annulus area and perimeter with complete numerical results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Arc Calculator Calculate circular arc length from radius and central angle in degrees. See the radian formula, worked examples, units, and mathematical sources.
- Circle Calculator Calculate circle radius, diameter, circumference, area, arc length, and sector area. Explore formulas, worked examples, units, and mathematical sources.
- Conic Section Calculator Explore ellipse, parabola and hyperbola geometry: calculate foci, eccentricity and equations, inspect numerical limits, and share or export complete results.
- Ellipse Calculator Calculate ellipse area, foci, eccentricity and approximate perimeter from two semiaxes. Inspect formulas, numerical limits, figures and complete result exports.
- Hyperbola Calculator Calculate hyperbola foci, eccentricity and asymptote slopes from positive semiaxes. Choose orientation, inspect numerical limits and export complete results.
- Irregular Polygon Calculator Calculate irregular polygon area and perimeter with full results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Parabola Calculator Find the focus, directrix and equation of a horizontal or vertical parabola from its signed focal parameter. Explore figures, limits and full result exports.
- Parallelogram Calculator Calculate parallelogram area and perimeter with full results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Plane Geometry Calculator Calculate plane shape area and perimeter with full results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Pythagorean Theorem Calculator Solve a right triangle with a² + b² = c². Enter any two of legs a, b and hypotenuse c to find the third side, plus area and perimeter. Try it free.
- Rectangle Calculator Calculate rectangle area and perimeter with complete numerical results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Regular Polygon Calculator Calculate regular polygon area and perimeter with full results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Sector Calculator Calculate sector area and arc length from radius and an angle in degrees. Explore formulas, worked examples, units, and trusted mathematical references.
- Square Calculator Calculate square area and perimeter with complete numerical results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Trapezoid Calculator Calculate trapezoid area and perimeter with complete numerical results, clear input limits, shareable links and CSV export. Runs locally in your browser.
- Triangle Solver Solve triangle sides, angles, area and perimeter with SSS, SAS, ASA, AAS or SSA. Inspect every solution, numerical limits and complete shareable result exports.