🏘️ Land & property
Acres to Square Feet Converter
Enter acres and press Convert to get square feet. Converting acre to square feet is exact: 43,560. One acre is exactly 43,560 sq ft, or 4,046.86 m².
About the Acres to Square Feet Converter
An acre is 43,560 sq ft by definition — originally the area a team of oxen could plough in a day, later fixed as a chain by a furlong (66 × 660 ft). That is why it is not a round number in metric terms: 4,046.8564224 m².
The figure people actually need is usually a fraction. A quarter acre is 10,890 sq ft, a half acre is 21,780 sq ft, and a typical suburban plot of 0.2 acre is 8,712 sq ft. For comparison, a football pitch is about 1.3 acres.
How the calculation works
- 1 acre = 43,560 sq ft = 4,046.8564224 m²
- sq ft = acres × 43,560
- 1 acre = 4,840 sq yd = 0.4046856422 hectare
Reference values
| Acres | Square feet | Square metres |
|---|---|---|
| 0.1 acre | 4,356 sq ft | 404.7 m² |
| 0.25 acre | 10,890 sq ft | 1,011.7 m² |
| 0.5 acre | 21,780 sq ft | 2,023.4 m² |
| 1 acre | 43,560 sq ft | 4,046.9 m² |
| 2 acres | 87,120 sq ft | 8,093.7 m² |
| 5 acres | 217,800 sq ft | 20,234.3 m² |
| 640 acres (1 sq mi) | 27,878,400 sq ft | 2.59 km² |
Worked examples
- 0.15 acre is 6,534 sq ft, a standard suburban building plot.
- 1.5 acres is 65,340 sq ft — a smallholding with room for a barn.
- 10 acres is 435,600 sq ft, or 10.1 hectares short of a quarter-section.
Checking the answer by hand
Multiply acres by 43,560, or think in chains: one acre is 66 ft by 660 ft, which is why a furlong is 660 ft. If your answer for 1 acre is 4,356, you dropped a zero — a common slip when converting from a decimal acre figure.
Common mistakes
- Confusing an acre with a hectare. A hectare is 2.471 acres.
- Assuming a square acre is 200 ft per side. It is 208.7 ft.
- Forgetting that a "quarter acre" plot in a US subdivision is 10,890 sq ft, not 11,000.
A last check on the numbers: 37 Acre works out to 1,611,720 Square foot, and reversing that with the same factor brings you back to 37 Acre. Because Acre to Square foot is a single multiplication, any tool that gives a different figure for the same input is rounding somewhere in the middle rather than only at the end.