Area Converters
Convert between metric and imperial/US customary units of area.
Popular area conversions
- Square meters to square feet
- Square feet to square meters
- Acres to hectares
- Hectares to acres
- Square kilometers to square miles
- Square miles to square kilometers
- Square inches to square centimeters
- Square centimeters to square inches
Units
- Square millimeter (mm²)
- Square centimeter (cm²)
- Square meter (m²)
- Hectare (ha)
- Square kilometer (km²)
- Square inch (in²)
- Square foot (ft²)
- Acre (ac)
- Square mile (mi²)
Notes and definitions
- The acre is the international acre (4046.8564224 m²). The US survey acre differs by about 2 parts per million and is not included.
- Area cannot be negative.
Sources: NIST Special Publication 811 (Guide for the Use of the SI).