Definition availableExact definition Candidate definition
Megajoule
MJcx:MJ · Energy
1 MJ = 1000000 J.
- Quantity kind
- Energy
- SI dimension
L^2 · M · T^-2- Allowed roles
- Scalar
- Unit system / convention
- SI decimal multiples
- Registry code
MJ
Scope and distinctions
Definition metadata. Quantity kind and model-field semantics determine compatibility; no new UUCE execution or CVP claim.
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
Tables 4–7: coherent derived units, unit algebra and decimal prefixes
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
ab35c28bc366fb5a69dadd31a2c286616bd03ef25bef4aada6d2892cbc0b676c- Definition dependency digest
7d3e6f2b1fb797af20d881c09c846c55a5e0f79190cf42d7d2808ef17afb5b94
Digests identify definition content; they are not CVP evidence or production attestations.