This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009) 1 hectometre = SI units 0.10000 km 100.00 m US customary / Imperial units 109.36 yd 328.08 ft

A hectometre (American spelling: hectometer, symbol hm) is a somewhat uncommonly used unit of length in the metric system, equal to one hundred metres. It derives from the Greek word "ekato", meaning "hundred". A regulation football or soccer field is approximately 1 hectometre in length. For area the square hectometre (hm2) is a common unit. It is more commonly known by the name of hectare (ha), meaning 100 ares (100 a). The are is a measurement of area the size of 1 decametre by 1 decametre, which is 10 metres by 10 metres. Hence 100 are equals an area with dimensions 100 m by 100 m — 1 hectometre by 1 hectometre, the square hectometre — equalling 10,000 square metres (10,000 m2). For volumes the cubic hectometre (hm3) is also used, 100 m by 100 m by 100 m equalling 1,000,000 cubic metres (1,000,000 m3). See also SI SI prefix hecto- Metric System For length: 1 hectometre and Orders of magnitude (length) For surface: 1 E+4 m² and Orders of magnitude (area) For volume: 1 E+6 m³ and Orders of magnitude (volume) Conversion of units, for comparison with other units v · d · eSI units of length yoctometre <<< zeptometre <<< attometre <<< femtometre <<< picometre <<< nanometre <<< micrometre <<< millimetre < centimetre < decimetre < metre < decametre < hectometre < kilometre <<< megametre <<< gigametre <<< terametre <<< petametre <<< exametre <<< zettametre <<< yottametre