How to convert square feet to acres
To convert square feet (ft²) to acres (ac), divide the value in square feet by 43,560.
ac = ft² ÷ 43,560
Example: 10 ft² = 0.0002295684114 ac.
You can also type 10 ft² to ac into the smart calculator, or mix units: 1 ft² + 1 ac.
Square Feet to Acres conversion table
| Square Feet | Acres |
|---|---|
| 0.01 ft² | 0.00000022956841 ac |
| 0.1 ft² | 0.0000022956841 ac |
| 0.25 ft² | 0.0000057392103 ac |
| 0.5 ft² | 0.000011478421 ac |
| 1 ft² | 0.000022956841 ac |
| 2 ft² | 0.000045913682 ac |
| 3 ft² | 0.000068870523 ac |
| 4 ft² | 0.000091827365 ac |
| 5 ft² | 0.00011478421 ac |
| 6 ft² | 0.00013774105 ac |
| 7 ft² | 0.00016069789 ac |
| 8 ft² | 0.00018365473 ac |
| 9 ft² | 0.00020661157 ac |
| 10 ft² | 0.00022956841 ac |
| 12 ft² | 0.00027548209 ac |
| 15 ft² | 0.00034435262 ac |
| 20 ft² | 0.00045913682 ac |
| 25 ft² | 0.00057392103 ac |
| 30 ft² | 0.00068870523 ac |
| 40 ft² | 0.00091827365 ac |
| 50 ft² | 0.0011478421 ac |
| 60 ft² | 0.0013774105 ac |
| 75 ft² | 0.0017217631 ac |
| 100 ft² | 0.0022956841 ac |
| 250 ft² | 0.0057392103 ac |
| 500 ft² | 0.011478421 ac |
| 1,000 ft² | 0.022956841 ac |
Converting acres back to square feet
1 ac = 43,560 ft². See the Acres to Square Feet converter, or press the swap button above.
About the units
Square foot (ft²)
A square one foot on each side: exactly 0.09290304 square meters.
Acre (ac)
Exactly 43,560 square feet, about 4,047 square meters.
Area measures a two-dimensional surface. The SI unit is the square meter. Property is often measured in square feet, while land uses acres or hectares: one hectare is 10,000 square meters, about 2.471 acres.
Questions and answers
How many acres are in a square foot?
One square foot (ft²) equals 0.00002295684114 acres (ac).
How do I convert square feet to acres?
To convert square feet to acres, divide the value in square feet by 43,560. The formula is ac = ft² ÷ 43,560. For example, 10 ft² = 0.00022956841 ac.
What is 10 ft² in ac?
10 square feet is 0.0002295684114 acres.
Which is bigger, a square foot or a acre?
A acre is bigger: 1 ac = 43,560 ft².
How big is an acre?
An acre is exactly 43,560 square feet, about 4,047 square meters or 0.405 hectares. A hectare is about 2.471 acres.
Does this ft² to ac converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.