Acres to Square Feet
Convert acres (ac) to square feet (ft²) instantly — with formula and reference table.
ac
ft²
Quick answer: 1 ac = 43560 ft². To convert acres to square feet, multiply by ac × 43560.
Converting acres to square feet
This converter changes a value in acres (ac) into square feet (ft²). One acre equals 43560 ft². One acre equals exactly 43,560 square feet. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
ft² = ac × 43560
Example
Convert 10 ac to ft²: 10 × 43560 = 435600 ft².
Acres to Square Feet conversion table
| Acres (ac) | Square Feet (ft²) |
|---|---|
| 1 ac | 43560 ft² |
| 2 ac | 87120 ft² |
| 3 ac | 130680 ft² |
| 5 ac | 217800 ft² |
| 10 ac | 435600 ft² |
| 20 ac | 871200 ft² |
| 25 ac | 1089000 ft² |
| 50 ac | 2178000 ft² |
| 100 ac | 4356000 ft² |
How to use this converter
- Enter a value in the acres (ac) field.
- Read the converted value in square feet (ft²) below.
- Type into the ft² field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many square feet are in an acre?
1 acre equals 43,560 square feet.
How do I convert 2 acres to square feet?
2 times 43,560 = 87,120 square feet.
How big is half an acre?
Half an acre is 21,780 square feet.