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
No converter is linked for this definition yet. You can inspect the definition and its sources.
Verification scope
New UUCE conversion paths have not been CVP-verified or production-attested. An exact unit definition is not a verification claim.
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.