Square Feet to Acres Calculator
Convert any area in square feet to acres, hectares, and other units. One acre is exactly 43,560 square feet. This calculator also shows you what a square lot of that size would look like.
An acre is the standard unit for measuring land in the United States. It equals exactly 43,560 square feet. The term dates back to medieval England, where an acre was the amount of land a yoke of oxen could plow in a day.
Formula: Acres = Square Feet / 43,560
Common Lot Sizes:
| Dimensions | Square Feet | Acres |
|---|---|---|
| 50 x 100 ft | 5,000 | 0.115 |
| 75 x 150 ft | 11,250 | 0.258 |
| 100 x 200 ft | 20,000 | 0.459 |
| 200 x 200 ft | 40,000 | 0.918 |
| 208.7 x 208.7 ft | 43,560 | 1.000 |
| 330 x 660 ft | 217,800 | 5.000 |
A typical suburban lot in the US is between 0.1 and 0.5 acres. A football field (including end zones) is about 1.32 acres.
Metric conversion: 1 acre = 0.404686 hectares. A hectare is 10,000 square meters, or roughly 2.471 acres.