Area Converter
Convert between square meters, square feet, acres, hectares, square miles and other area units.
Convert area
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Popular area conversions
Area units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the square meter (m²).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Square millimeter | mm² | SI | = 0.000001 m² |
| Square centimeter | cm² | SI | = 0.0001 m² |
| Square meter | m² | SI | Base unit |
| Hectare | ha | SI-accepted | = 10000 m² |
| Square kilometer | km² | SI | = 1000000 m² |
| Square inch | in² | US customary | = 0.00064516 m² |
| Square foot | ft² | US customary | = 0.09290304 m² |
| Square yard | yd² | US customary | = 0.83612736 m² |
| Acre | ac | US customary | = 4046.8564224 m² |
| Square mile | mi² | US customary | = 2589988.110336 m² |
Square meter quick reference
| Square meter | Square centimeter | Hectare | Square kilometer |
|---|---|---|---|
| 1 m² | = 10000 cm² | = 0.0001 ha | = 0.000001 km² |
| 10 m² | = 100000 cm² | = 0.001 ha | = 0.00001 km² |
| 100 m² | = 1000000 cm² | = 0.01 ha | = 0.0001 km² |
| 1000 m² | = 10000000 cm² | = 0.1 ha | = 0.001 km² |
Among the 10 area units on this page, the smallest is the square millimeter (mm²) and the largest is the square mile (mi²).
More area conversions
About area units
Area is measured in squared length units. The SI unit is the square meter. Because the length units are exact, the area conversions are exact too: one square foot is exactly 0.09290304 m².
For land, the metric world uses the hectare (10,000 m²) and the US and UK use the acre (exactly 4046.8564224 m²).
Frequently asked questions
- How many square feet are in a square meter?
- About 10.7639. One square meter is 1 ÷ 0.09290304 square feet.
- Which acre does this converter use?
- The international acre, based on the international foot. The older US survey acre differs by about 4 parts per million, which matters only for large land surveys.
- How many square centimeters are in one square meter?
- One square meter = 10000 cm² (square centimeters).
- How many hectares are in one square meter?
- One square meter = 0.0001 ha (hectares).
- How many square kilometers are in one square meter?
- One square meter = 0.000001 km² (square kilometers).