Definition availableExact definition Candidate definition
Hectare
hacx:ha · Area
1 ha = 10000 m².
- Quantity kind
- Area
- SI dimension
L^2- Allowed roles
- Scalar
- Unit system / convention
- Accepted with SI
- Registry code
ha
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
Table 8: hectare = 10000 square metres
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
85d1e6641dd3428fb8ea2ee9671cf18f1bb798968374287cec91d3007d1a3802- Definition dependency digest
eff3c69ec8774605ccb65553a706b3d1d2cfbca6a07027e0706b5d2cbfa76deb
Digests identify definition content; they are not CVP evidence or production attestations.