Square Feet to Acres Converter
How to convert square feet to acres
acres = square feet ÷ 43,560
To convert square feet to acres, divide the number of square feet by 43,560.
1 ft² = 0.0000229568411 ac
Examples
- One acre: 43,560 ft² ÷ 43,560 = 1 ac
- A doubles tennis court (78 ft × 36 ft): 2,808 ft² ÷ 43,560 = 0.0644628099 ac
Good to know
One acre is exactly 43,560 square feet.
This is the international acre. The US survey acre, based on the survey foot that was retired at the end of 2022, is about 4,046.873 m², a difference of roughly 4 parts per million.
Square feet to acres conversion table
| Square feet (ft²) | Acres (ac) |
|---|---|
| 10 ft² | 0.000229568411 ac |
| 50 ft² | 0.00114784206 ac |
| 100 ft² | 0.00229568411 ac |
| 200 ft² | 0.00459136823 ac |
| 250 ft² | 0.00573921028 ac |
| 500 ft² | 0.0114784206 ac |
| 750 ft² | 0.0172176309 ac |
| 1,000 ft² | 0.0229568411 ac |
| 1,200 ft² | 0.0275482094 ac |
| 1,500 ft² | 0.0344352617 ac |
| 2,000 ft² | 0.0459136823 ac |
| 2,500 ft² | 0.0573921028 ac |
| 3,000 ft² | 0.0688705234 ac |
| 5,000 ft² | 0.114784206 ac |
| 10,000 ft² | 0.229568411 ac |
| 43,560 ft² | 1 ac |
Unit definitions
- Square foot (ft²)
- A square foot is the area of a square with 1-foot sides, exactly 0.09290304 square meters. It is the standard unit for floor area in the United States.
- Acre (ac)
- An acre is 43,560 square feet, exactly 4,046.8564224 square meters. It is the usual unit for land area in the United States and is still common in the United Kingdom.