Common Converters
Area Converter
Convert between metric and imperial/US land area units, including the acre (43,560 ft² exactly) and hectare (10,000 m²) used worldwide for land measurement.
AREA CONVERTER — INSTANT RESULT
All supported units — area
| Unit | Symbol | To square meter (m²) | From square meter (m²) |
|---|---|---|---|
| Square Kilometer | km² | 1 km² = 1,000,000 m² | 1 m² = 1e-06 km² |
| Square Meter | m² | 1 m² = 1 m² | 1 m² = 1 m² |
| Hectare | ha | 1 ha = 10,000 m² | 1 m² = 0.0001 ha |
| Are | a | 1 a = 100 m² | 1 m² = 0.01 a |
| Square Centimeter | cm² | 1 cm² = 0.0001 m² | 1 m² = 10,000 cm² |
| Square Millimeter | mm² | 1 mm² = 1e-06 m² | 1 m² = 1,000,000 mm² |
| Square Mile | mi² | 1 mi² = 2,589,988.110336 m² | 1 m² = 3.8610216e-07 mi² |
| Acre | ac | 1 ac = 4,046.8564224 m² | 1 m² = 0.00024710538 ac |
| Square Yard | yd² | 1 yd² = 0.83612736 m² | 1 m² = 1.19599005 yd² |
| Square Foot | ft² | 1 ft² = 0.09290304 m² | 1 m² = 10.76391042 ft² |
| Square Inch | in² | 1 in² = 0.00064516 m² | 1 m² = 1,550.00310001 in² |
| Barn | b | 1 b = 1e-28 m² | 1 m² = 1e+28 b |
| Circular Mil | cmil | 1 cmil = 5.06707e-10 m² | 1 m² = 1,973,525,241.38023901 cmil |
Popular area conversions
ac to ft²ft² to m²ha to acmi² to acm² to ft²in² to cm²yd² to ft²km² to mi²ac to hacm² to in²ac to m²mm² to in²
Frequently asked questions
What units does this area converter support?
It supports 13 units: Square Kilometer (km²), Square Meter (m²), Hectare (ha), Are (a), Square Centimeter (cm²), Square Millimeter (mm²), Square Mile (mi²), Acre (ac), Square Yard (yd²), Square Foot (ft²), Square Inch (in²), Barn (b), Circular Mil (cmil).
What is the base unit of area?
The SI reference unit is the square meter (m²). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.