Free tool
Lot Size to Acres Calculator
Convert lot size in square feet or length and width to acres, square meters, and hectares, or convert acres to square feet.
How to use the Lot Size to Acres Calculator
- Choose square feet, length × width, or acres.
- Enter your numbers.
- Read the size in acres, square feet, square meters, and hectares.
Common lot sizes
| Acres | Square feet | Example size |
|---|---|---|
| 0.1 | 4,356 | About 66 × 66 ft |
| 0.25 | 10,890 | About 104 × 104 ft |
| 0.5 | 21,780 | About 148 × 148 ft |
| 1 | 43,560 | About 209 × 209 ft |
Your lot size is usually on your property tax bill, deed, or county website. Planning a fence around it? Use our wood fence cost calculator.
Frequently asked questions
How many square feet are in an acre?
One acre is 43,560 square feet. That is about the size of a U.S. football field without the end zones.
How do I convert square feet to acres?
Divide the square feet by 43,560. For example, a 10,890 square foot lot is 10,890 ÷ 43,560 = 0.25 acres.