A hectometre (American spelling: hectometer, symbol: hm) is a measurement of distance equal to 100 metres. This measure is rarely used and is included mostly for completeness, since usage of the SI prefix hecto is no longer recommended.

A hectare is a square hectometre.

decametre << hectometre << kilometre

See also

• 1 E2 m
• SI
• SI prefix
• Orders of magnitude