1 square foot to acres
1 ft² = 0.00002296 ac. Change the amount below, or read the formula and the reference table further down.
1 square foot equals
acres
1 ft² = 0.00002296 ac
The formula
Square feet and acres both measure area from the same zero, so a single multiplier does the job.
ac = ft² × 0.0000229568
Going the other way? Convert acres to square feet.
Square feet to acres table
Values either side of 1 ft².
| Square feet (ft²) | Acres (ac) |
|---|---|
| -4 | -0.000092 |
| -3.5 | -0.00008 |
| -3 | -0.000069 |
| -2.5 | -0.000057 |
| -2 | -0.000046 |
| -1.5 | -0.000034 |
| -1 | -0.000023 |
| -0.5 | -0.000011 |
| 0 | 0 |
| 0.5 | 0.000011 |
| 1 | 0.000023 |
| 1.5 | 0.000034 |
| 2 | 0.000046 |
| 2.5 | 0.000057 |
| 3 | 0.000069 |
| 3.5 | 0.00008 |
| 4 | 0.000092 |
| 4.5 | 0.000103 |
| 5 | 0.000115 |
| 5.5 | 0.000126 |
| 6 | 0.000138 |
Questions people ask
- How many acres are in a square foot?
- One square foot equals 0.0000229568 acres.
- How do I convert square feet to acres by hand?
- Multiply the number of square feet by 0.0000229568. For a rough check, 0 is close enough for most everyday use.
- What is 1 square foot in acres?
- 1 square foot is 0.00002296 acres.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.