Hectometre

The hectometre (SI symbol: hm), spelled hectometer in American English, is a unit of length in the International System of Units (SI), equal to one hundred metres^[1] and to one tenth of a kilometre. The word comes from a combination of "metre" and the SI prefix "hecto-", meaning "hundred".^[2] It is not commonly used in English.^{[citation needed]} A football field (either soccer or American football) is approximately 1 hectometre in length.^[3][4] The hectare (ha), a common metric unit for land area, is equal to one square hectometre (hm²).

Hectometre
The Great Pyramid of Giza is 137.7 metres high, which is 1.377 hectometres.
General information
Unit system	SI
Unit of	length
Symbol	hm
Conversions
1 hm in ...	... is equal to ...
SI base units	100 m
imperial/US units	328.08 ft

The hectometre has sometimes been used for expressing the distance to a target in warfare.^[5][6][7]

See also

• Orders of magnitude (length)
• Conversion of units