Convert acres to square feet
Acre (ac) to square foot (ft²). One acre equals 43560 square feet.
Formula
Acre to square foot conversion table
| Acres | Square feet | Square feet | Acres |
|---|---|---|---|
| 1 ac | 43560 ft² | 1 ft² | 0.000023 ac |
| 2 ac | 87120 ft² | 2 ft² | 0.000046 ac |
| 3 ac | 130680 ft² | 3 ft² | 0.000069 ac |
| 5 ac | 217800 ft² | 5 ft² | 0.000115 ac |
| 10 ac | 435600 ft² | 10 ft² | 0.00023 ac |
| 20 ac | 871200 ft² | 20 ft² | 0.000459 ac |
| 50 ac | 2178000 ft² | 50 ft² | 0.001148 ac |
| 100 ac | 4356000 ft² | 100 ft² | 0.002296 ac |
| 500 ac | 21780000 ft² | 500 ft² | 0.011478 ac |
| 1000 ac | 43560000 ft² | 1000 ft² | 0.022957 ac |
To convert acres to square feet, multiply the number of acres by 43560. One acre equals 43560 square feet, and one square foot equals 0.000023 acres, so the relationship is fixed and exact. As a worked example, 10 ac comes to 435600 ft². Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a area conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common acre values already worked out in square feet, plus the reverse square foot to acre direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many square feet are in an acre?
One acre equals 43560 square feet. The ratio is constant, so you can multiply any number of acres by 43560 to get square feet.
What is the formula to convert acres to square feet?
Use square feet = acres × 43560. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert square feet back to acres?
Go the other way by using one square foot equals 0.000023 acres. You can also press the swap button in the converter above to flip the direction in one click.
Is this acre to square foot converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.