Instantly convert square feet (sq ft) to acres (ac). Bidirectional, accurate, and free.
To convert square feet to acres, use the formula acres = square feet × 0. For example, 2 square feet equals 0 acres. Type any number into the calculator above and the result appears instantly — you can also type into the acres box to convert the other way.
| Square feet | Acres |
|---|---|
| 1 sq ft | 0 ac |
| 5 sq ft | 0.0001 ac |
| 10 sq ft | 0.0002 ac |
| 25 sq ft | 0.0006 ac |
| 50 sq ft | 0.0011 ac |
| 100 sq ft | 0.0023 ac |
| 250 sq ft | 0.0057 ac |
| 500 sq ft | 0.0115 ac |
There are 0 acres in one square foot. To convert any value, apply the formula acres = square feet × 0.
The formula is acres = square feet × 0. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.