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Square feet to acres
Square feet to acres: type a value and read the result as you type, free and without signing up. The page also shows the value in every other area unit. Nothing is uploaded: the maths runs in your browser.
How to convert area units online
- 1Type the number you want to convert
- 2Check the units in From and To, or press Swap
- 3Read the result under the fields
- The converted value, plus every other unit.
What happens to your numbers
- Nothing is uploaded.The sum is done by your browser. The number you type never leaves your device.
- Exact definitions.A square foot is 0.09290304 m², an acre 4046.8564224 m² and a hectare 10,000 m².
- Works offline.Once the tool has been opened, it needs no connection.
What you can do
- Convert any value, including decimals and negative numbers. The result changes as you type.
- A worked example: 10 square feet = 0.000229568 acres.
- Press Swap to turn the conversion around without retyping the number.
- See the same value in every other area unit in one table: square meters, square feet, acres and hectares.
- Convert plot and floor sizes, for example acres to hectares for land, or square feet to square meters for flats and offices.
Good to know
- A square foot is a square with sides of one foot, exactly 0.09290304 square meters. It is how floor areas are given in the US and UK.
- An acre is 4046.8564224 square meters, or 43,560 square feet. It is used for land in the US and UK, and 1 acre is about 0.405 hectares.
- Results show up to 10 significant digits. Very large or very small values appear in exponent form, such as 1.500000e-7.
- Area factors are the squares of length factors: 1 square meter is about 10.764 square feet, not 3.28. Do not use the length converter for areas.
Questions
Is this area converter free?
Yes. It is free and needs no account or sign-up. Nothing you type is uploaded.
How exact is the result?
The factors are exact: 1 square foot is 0.09290304 square meters, 1 acre is 4046.8564224 square meters and 1 hectare is 10,000 square meters. The result shows up to 10 significant digits.
How many square feet are in an acre?
One acre is 43,560 square feet, or 4046.8564224 square meters. Pick Acres and Square feet in the From and To fields to see it for any number.
Can I convert to a different unit?
Yes. Change the To unit, or read the table below the result, which lists the value in every other unit.