Definition availableExact definition Candidate definition
Watt hour
Whcx:Wh · Energy
1 Wh = 3600 J.
- Quantity kind
- Energy
- SI dimension
L^2 · M · T^-2- Allowed roles
- Scalar
- Unit system / convention
- Other conventions
- Registry code
Wh
Scope and distinctions
Energy, not power. W to Wh requires an explicit power/time model.
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
- BIPM — The International System of Units (SI)
9th edition, version 4.01, June 2026
Table 4 watt = joule/second; Table 8 hour = 3600 s
Source checked:Definition metadata attributed to BIPM; brochure licensed CC BY 4.0.
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
a7637548904cbc58d53bfbe1245b4ff22006bf9ffabaeb80af7a23a1c60f27b3- Definition dependency digest
3defdefe4e336c0accaf1f282c8367d1ae49cc6f829e99aa2ae849aca1793ede
Digests identify definition content; they are not CVP evidence or production attestations.