How to convert acres to square feet
- Take the value in acres.
- Use the formula square feet = acres × 43,560.
- For example, 0.25 ac is 10,890 ft².
About acres and square feet
Multiply acres by 43,560 to get square feet. The figure is exact: an acre was defined as a strip 660 ft long and 66 ft wide, and 660 × 66 is 43,560.
It helps when a lot is listed in acres but you want to compare it with a house size, a lawn or a building footprint in square feet, or when you need the area for seed, fertilizer or sod sold by the square foot.
Examples
- 0.25 ac (a quarter-acre suburban lot) is 10,890 ft²
- 1 ac (one acre) is 43,560 ft²
- 640 ac (one square mile) is 27,878,400 ft²
- 843 ac (Central Park in New York) is 36,721,080 ft²
Acres to square feet chart
| Acres (ac) | Square feet (ft²) |
|---|---|
| 0.1 | 4,356 |
| 0.125 | 5,445 |
| 0.2 | 8,712 |
| 0.25 | 10,890 |
| 0.3 | 13,068 |
| 0.5 | 21,780 |
| 0.75 | 32,670 |
| 1 | 43,560 |
| 1.5 | 65,340 |
| 2 | 87,120 |
| 2.5 | 108,900 |
| Acres (ac) | Square feet (ft²) |
|---|---|
| 3 | 130,680 |
| 4 | 174,240 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 40 | 1,742,400 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 160 | 6,969,600 |
| 640 | 27,878,400 |