Area Converter
Convert between square metres, square feet, acres, hectares, square kilometres, and more.
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How to use this calculator
- 1
Enter your area value in the "From" field.
- 2
Select the unit you are converting from (e.g. square metres).
- 3
Select the unit you want the result in (e.g. square feet).
- 4
The converted value appears instantly.
Frequently asked questions
How many square feet are in an acre?
One acre equals exactly 43,560 square feet. An acre is also approximately 4,047 square metres or 0.4047 hectares.
How many acres are in a hectare?
One hectare equals approximately 2.47105 acres. A hectare is defined as 10,000 square metres.
How do I convert square metres to square feet?
Multiply the number of square metres by 10.7639. For example, 50 m² = 50 × 10.7639 = 538.2 square feet.
What is the size of a football field in square metres?
A standard NFL football field is about 91.44 × 48.76 metres = approximately 4,459 square metres or about 1.1 acres.
How many square kilometres in a square mile?
One square mile equals approximately 2.58999 square kilometres.
Area unit conversion guide
Metric and imperial area units
The metric system measures area in square metres (m²), with larger units like hectares (10,000 m²) and square kilometres (1,000,000 m²). The imperial system uses square inches, square feet, square yards, acres, and square miles. Real estate in the US is typically quoted in square feet, while most of the world uses square metres.
Key area conversion factors
1 m² = 10.7639 ft² | 1 ft² = 0.0929 m² | 1 acre = 4,046.86 m² = 43,560 ft² | 1 hectare = 10,000 m² = 2.471 acres | 1 km² = 100 hectares = 0.386 mi² | 1 mi² = 2.59 km² = 640 acres.
Practical applications
Area conversions are used in real estate (listing sizes in ft² vs m²), agriculture (farm sizes in acres vs hectares), construction and interior design (floor area calculations), land surveys, and geography (country and region sizes).
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →