How it's calculated
acres = sq ft ÷ 43,560
1 acre = 43,560 square feet. Reverse: sq ft = acres × 43,560.
Common values
| Square feet (sq ft) | Acres |
|---|---|
| 10890 | 0.25 |
| 21780 | 0.5 |
| 43560 | 1 |
| 87120 | 2 |
| 435600 | 10 |
Common questions
How many square feet are in an acre?
An acre is exactly 43,560 square feet by legal definition.
How big is a quarter-acre lot?
A quarter acre is 10,890 square feet, a common size for a suburban residential lot.