Hectometre
The hectometre, spelled hectometer in American English, is a unit of length in the International System of Units, equal to one hundred metres and to one tenth of a kilometre. The word comes from a combination of "metre" and the SI prefix "hecto-", meaning "hundred". It is not commonly used in English. A football field is approximately 1 hectometre in length. The hectare, a common metric unit for land area, is equal to one square hectometre.
The hectometre has sometimes been used for expressing the distance to a target in warfare.