Definition availableExact definition Candidate definition
Square kilometre
km²cx:km2 · Area
1 km² = (1 km)^2.
- Quantity kind
- Area
- SI dimension
L^2- Allowed roles
- Scalar
- Unit system / convention
- SI decimal multiples
- Registry code
km2
Scope and distinctions
Definition metadata only. The quantity kind and model field contract determine compatible use; 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 2, 4 and 5: SI units; Table 7: SI 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
ade080bb35c68ad8bd7de1fab0b3d8a972d9a932110dcd85f83cdc847360c059- Definition dependency digest
a97dcdd80768727dae5ac3e77749db67022a0f1a7e0505116c6a7a65a1cf4f97
Digests identify definition content; they are not CVP evidence or production attestations.