Acres to Square Feet Converter
Helpful for US lot sizes, which are often listed in acres or square feet.
1 ac = 43,560 ft²
square feet
1 ac = 43,560 ft²
How to convert acres to square feet
Multiply the number of acres by 43,560.
Formula
ft² = ac × 43,560
Examples
- 0.25 ac × 43,560 = 10,890 ft²
- 0.5 ac × 43,560 = 21,780 ft²
- 2 ac × 43,560 = 87,120 ft²
Acres to square feet conversion table
| Acres (ac) | Square feet (ft²) |
|---|---|
| 0.1 | 4,356 |
| 0.15 | 6,534 |
| 0.2 | 8,712 |
| 0.25 | 10,890 |
| 0.33 | 14,374.8 |
| 0.5 | 21,780 |
| 0.75 | 32,670 |
| 1 | 43,560 |
| 1.5 | 65,340 |
| 2 | 87,120 |
| 5 | 217,800 |
| 10 | 435,600 |
Values rounded to 4 decimal places or 4 significant digits.
About acres
An acre is 43,560 square feet, about 4,047 m². It is the traditional unit for land in the US and the UK. An American football field including both end zones covers about 1.32 acres.
About square feet
A square foot equals 144 square inches, exactly 0.09290304 m². It is the standard unit for home and office floor space in the US and Canada.
Frequently asked questions
How many square feet are in one acre?
One acre equals 43,560 square feet.
How do I convert acres to square feet?
Multiply the number of acres by 43,560. For example: 0.5 ac × 43,560 = 21,780 ft².
How many acres are in one square foot?
One square foot equals 0.00002296 acres.
Is the ac to ft² conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.