Pound-force per square inch
psicx:psi · Pressure
1 psi = (1 lbf)^1 × (1 in)^-2.
- Quantity kind
- Pressure
- SI dimension
L^-1 · M · T^-2- Allowed roles
- Scalar
- Unit system / convention
- Other conventions
- Registry code
psi
Scope and distinctions
Pressure scale only; absolute/gauge reference remains a separate model condition.
Available operations
UUCE executable Preview · Use cx:psi with a compatible unit and a pinned snapshot.
No legacy converter is linked for this definition.
Verification scope
- UUCE conversion capability
units.convertversion0.1.1· VERIFIED- Production binding at publication
- CURRENT
The definition lifecycle describes this registry entry. CVP status describes the conversion capability and the cases and rejection partitions in its Manifest. CVP Manifest · Public replay cases
Candidate is a registry lifecycle state. It is not a completed review or CVP verification.
Definition sources
- NIST — NIST Guide to the SI, Appendix B.8
SP 811 online conversion table accessed 2026-10-28
Appendix B.8: Pound-force per square inch; exact relation distinguished from rounded tabular display
Source checked:Exact definition is distinguished from rounded table entries; no media copied.
Definition and registry versions
- Definition revision
- 1.0.0
- Registry snapshot
- 0.3.0-preview.3 · preview
- Definition lifecycle
- candidate
- Definition owner
- core.metrology
- Definition digest
f4e11151f2db9bff61bf7b5ff67021e071fc835e8b13cff9334f31196e5876af- Definition dependency digest
68c7412f1bdb0a07d42d30272e9adf5741616b9c71827ea57ce1eebec36554f0
Digests identify definition content; they are not CVP evidence or production attestations.