Area Converter: Square Feet, m², Acres
Convert between square feet, square metres, acres, hectares and more.
Good to know. An acre was the land one ox could plough in a day. A hectare is just a square 100 metres on each side.
How it works
In plain words
Convert the area into square metres using the exact size of the unit, then from square metres into the target unit. A square unit is the length unit squared: a foot is 0.3048 m, so a square foot is 0.3048² = 0.09290304 m².
The formula
result = value × (m² per "from" unit) ÷ (m² per "to" unit) 1 ft² = 0.09290304 m² · 1 acre = 4,046.8564224 m² · 1 ha = 10,000 m²
Worked example
1,000 square feet × 0.09290304 = 92.90304 m², a typical two-bedroom flat.
Sources
- NIST Special Publication 811, Guide for the Use of the International System of Units, Appendix B Exact conversion factors for US customary units.
- International yard and pound agreement, 1959 1 yard = 0.9144 m and 1 pound = 0.45359237 kg exactly, so 1 inch = 2.54 cm and 1 mile = 1.609344 km.
Sources checked September 30, 2026. 5 automated tests check its answers on every change.
About the area converter: square feet, m², acres
Area comes up whenever you compare homes, plan flooring, or buy land. Homes are measured in square feet in the US and Canada and in square metres almost everywhere else; land is measured in acres in the US and UK and in hectares in most other countries.
Every conversion here is exact. Since the inch is defined as exactly 2.54 cm, a square foot is exactly 0.09290304 m², and an acre, 43,560 square feet, is exactly 4,046.8564224 m². A hectare is 10,000 m², a square 100 metres on each side, or about 2.47 acres.
A common mistake is to convert area with a length factor. A metre is about 3.28 feet, but a square metre is about 10.76 square feet, because both sides are converted: 3.28 × 3.28. The same goes for centimetres: a square metre is 10,000 cm², not 100.
Quick references: a football pitch is about 0.7 hectares or 1.8 acres. A square mile is 640 acres or 259 hectares. For the area of a room or plot from its measurements, use the area calculator, then convert here if you need another unit.
Questions people ask
How many square feet are in a square metre?
About 10.764. To convert square metres to square feet, multiply by 10.764; to go back, multiply by 0.0929.
How many acres are in a hectare?
About 2.471. One acre is about 0.405 hectares.
How many square feet are in an acre?
Exactly 43,560, which is about 4,047 square metres.
How do I convert square feet to square metres?
Multiply by 0.09290304, or divide by 10.764. 1,000 ft² is about 92.9 m².