Popular area conversions
- Square feet to square meters1 ft² = 0.092903 m²
- Square feet to acres1 ft² = 0.0000229568 ac
- Square feet to hectares1 ft² = 0.0000092903 ha
- Square feet to square kilometers1 ft² = 9.2903×10⁻⁸ km²
- Square feet to square miles1 ft² = 3.58701×10⁻⁸ mi²
- Square meters to square feet1 m² = 10.7639 ft²
- Square meters to acres1 m² = 0.000247105 ac
- Square meters to hectares1 m² = 0.0001 ha
- Square meters to square kilometers1 m² = 0.000001 km²
- Square meters to square miles1 m² = 3.86102×10⁻⁷ mi²
- Acres to square feet1 ac = 43,560 ft²
- Acres to square meters1 ac = 4,046.86 m²
- Acres to hectares1 ac = 0.404686 ha
- Acres to square kilometers1 ac = 0.00404686 km²
- Acres to square miles1 ac = 0.0015625 mi²
- Hectares to square feet1 ha = 107,639 ft²
- Hectares to square meters1 ha = 10,000 m²
- Hectares to acres1 ha = 2.47105 ac
- Hectares to square kilometers1 ha = 0.01 km²
- Hectares to square miles1 ha = 0.00386102 mi²
- Square kilometers to square feet1 km² = 10,763,900 ft²
- Square kilometers to square meters1 km² = 1,000,000 m²
- Square kilometers to acres1 km² = 247.105 ac
- Square kilometers to hectares1 km² = 100 ha
- Square kilometers to square miles1 km² = 0.386102 mi²
- Square miles to square feet1 mi² = 27,878,400 ft²
- Square miles to square meters1 mi² = 2,589,990 m²
- Square miles to acres1 mi² = 640 ac
- Square miles to hectares1 mi² = 258.999 ha
- Square miles to square kilometers1 mi² = 2.58999 km²
- Square inches to square centimeters1 in² = 6.4516 cm²
- Square centimeters to square inches1 cm² = 0.155 in²
- Square yards to square meters1 yd² = 0.836127 m²
- Square meters to square yards1 m² = 1.19599 yd²
- Square feet to square yards1 ft² = 0.111111 yd²
- Square yards to square feet1 yd² = 9 ft²
About area units
Area units are squares of length units, so their conversion factors are the square of the length factor: because 1 ft = 0.3048 m exactly, 1 ft² = 0.09290304 m² exactly. Land is measured in acres (US/UK) or hectares (metric); an acre is 43,560 ft² and a hectare is 10,000 m².
Area unit reference
| Unit | Symbol | Value in m² | System |
|---|---|---|---|
| Square meter | m² | 1 m² | SI |
| Square centimeter | cm² | 0.0001 m² | SI |
| Square millimeter | mm² | 0.000001 m² | SI |
| Square kilometer | km² | 1,000,000 m² | SI |
| Hectare | ha | 10,000 m² | Metric |
| Are | a | 100 m² | Metric |
| Square inch | in² | 0.00064516 m² | US customary |
| Square foot | ft² | 0.09290304 m² | US customary |
| Square yard | yd² | 0.83612736 m² | US customary |
| Acre | ac | 4,046.8564 m² | US customary |
| Square mile | mi² | 2,589,988.1 m² | US customary |
| Square rod | rd² | 25.292853 m² | Imperial |
| Rood | ro | 1,011.7141 m² | Imperial |
| Barn | b | 1×10⁻²⁸ m² | Other |
Frequently asked questions
What is the SI unit of area?
This converter uses the square meter (m²) as its reference unit; every other unit is defined relative to it.
How many area units can I convert?
14 units are supported here, across SI, Metric, US customary, Imperial, Other systems. Every pair can be converted in both directions.
Does this area converter work offline?
Yes. Once the page has loaded, every calculation runs locally in your browser — nothing is sent to a server.