Convert square feet to acres
1 square foot equals 0.0000229568 acres. To convert square feet to acres, divide the number of square feet by 43,560: for example, 10 sq ft is 0.000229568 ac. Ethical Tube's free square feet to acres converter does the math as you type, and the chart below lists common values.
1 sq ft = 0.0000229568 ac
- 1 sq ft
- 0.0000229568 ac
- 1 ac
- 43,560 sq ft
- Formula
- ac = sq ft × 0.0000229568
- Measures
- Area
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- Works offline
- Yes
Conversion chart
square feet to acres chart
| Square feet (sq ft) | Acres (ac) |
|---|---|
| 1 sq ft | 0.0000229568 ac |
| 2 sq ft | 0.0000459137 ac |
| 3 sq ft | 0.0000688705 ac |
| 4 sq ft | 0.0000918274 ac |
| 5 sq ft | 0.000114784 ac |
| 6 sq ft | 0.000137741 ac |
| 8 sq ft | 0.000183655 ac |
| 10 sq ft | 0.000229568 ac |
| 12 sq ft | 0.000275482 ac |
| 15 sq ft | 0.000344353 ac |
| 20 sq ft | 0.000459137 ac |
| 25 sq ft | 0.000573921 ac |
| 50 sq ft | 0.00114784 ac |
| 100 sq ft | 0.00229568 ac |
How it works
How to convert square feet to acres
Know the formula
ac = sq ft × 0.0000229568. In words: divide the number of square feet by 43,560.
Work an example
10 sq ft → 0.000229568 ac. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About area units
- A square meter is about 10.76 square feet.
- An acre is 43,560 square feet, and a hectare is 10,000 square meters, about 2.47 acres.
FAQ
Questions, answered
How many acres are in a square foot?
There are 0.0000229568 acres in 1 square foot. To convert square feet to acres, divide the number of square feet by 43,560.
What is 10 square feet in acres?
10 square feet is 0.000229568 acres.
How do you convert acres back to square feet?
Multiply the number of acres by 43,560. 1 acre is 43,560 square feet.
Is this square feet to acres converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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