Convert Square Feet to Acres
ft² to ac · area conversion
What are square feet and acres?
A square foot is a square 12 inches on each side (about 0.0929 m²), standard for US floor area. An acre is 43,560 square feet (about 4,047 m²), the traditional unit for land area. For scale: a tennis court is about 261 m² (2,808 ft²), and a soccer pitch is roughly 0.7 hectares.
How to convert square feet to acres
1 ft² = 0.0000229568 ac. To convert, multiply the number of square feet by 0.0000229568. For example, 5 ft² = 0.000114784 ac, and 20 ft² = 0.000459137 ac. To go the other way, multiply acres by 43,560 (since 1 ac = 43,560 ft²).
Square Feet to Acres conversion table
| Square Feet (ft²) | Acres (ac) |
|---|---|
| 1 | 0.0000229568 |
| 5 | 0.000114784 |
| 10 | 0.000229568 |
| 25 | 0.000573921 |
| 50 | 0.00114784 |
| 100 | 0.00229568 |
| 1,000 | 0.0229568 |
FAQ
What is 1 ft² in ac?
1 ft² = 0.0000229568 ac. To convert any amount, multiply the number of square feet by 0.0000229568.
How do I convert acres back to square feet?
Go the other way: 1 ac = 43,560 ft², so multiply acres by 43,560 to get square feet.
Is a square feet bigger than a acre?
No — 1 ft² is the smaller unit, equal to 0.0000229568 ac (it takes 43,560 ft² to make one ac).
Are these area conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.