Hectometre
SI unit of length
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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]