< Convert | list of units
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Latest revision as of 02:25, 17 December 2023
| system | unit | unit- code |
symbol or abbrev. |
notes | sample default conversion |
combination output units | |
|---|---|---|---|---|---|---|---|
| SI | square kilometre | km2 | km2 | US spelling: square kilometer |
1.0 km2 (0.39 sq mi) |
| |
| square metre | m2 | m2 | US spelling: square meter |
1.0 m2 (11 sq ft) |
| ||
| square centimetre | cm2 | cm2 | US spelling: square centimeter |
1.0 cm2 (0.16 sq in) |
| ||
| square millimetre | mm2 | mm2 | US spelling: square millimeter |
1.0 mm2 (0.0016 sq in) |
| ||
| non-SI metric | hectare | ha | ha | 1.0 ha (2.5 acres) | |||
| Imperial & US customary |
square mile | sqmi | sq mi | 1.0 sq mi (2.6 km2) |
| ||
| acre | acre | (none) | 1.0 acre (0.40 ha) | ||||
| square yard | sqyd | sq yd | 1.0 sq yd (0.84 m2) | ||||
| square foot | sqft (sqfoot) |
sq ft | long code "sqfoot" outputs square foot (and never feet) | 1.0 sq ft (0.093 m2) |
| ||
| square inch | sqin | sq in | 1.0 sq in (6.5 cm2) |
| |||
| Other | square nautical mile | sqnmi | sq nmi | 1.0 sq nmi (3.4 km2; 1.3 sq mi) | |||
| dunam | dunam | (none) | For alternative spellings and definitions see the full list | 1.0 dunam (0.0010 km2; 0.00039 sq mi) | |||
| tsubo | tsubo | (none) | 1.0 tsubo (3.3 m2) |