Acres to Square feet
Convert acres to square feet instantly. The formula is ft² = ac × 43560, and the reference table below covers the values people look up most.
1 ac equals
43,560.00 ft²
Formula
An acre is exactly 43,560 square feet — historically the area a yoke of oxen could plough in a day.
Acres to Square feet table
| Acres | Square feet |
|---|---|
| 0.10 ac | 4,356.00 ft² |
| 0.25 ac | 10,890.00 ft² |
| 0.50 ac | 21,780.00 ft² |
| 1 ac | 43,560.00 ft² |
| 2 ac | 87,120.00 ft² |
| 5 ac | 217,800.00 ft² |
| 10 ac | 435,600.00 ft² |
| 20 ac | 871,200.00 ft² |
| 50 ac | 2,178,000.00 ft² |
Frequently asked questions
How many square feet are in a acre?
One acre equals 43,560.00 square feet. An acre is exactly 43,560 square feet — historically the area a yoke of oxen could plough in a day.
What is the formula to convert acres to square feet?
ft² = ac × 43560. Enter any value above and the result updates as you type, with no rounding until the final display.
How do I convert square feet back to acres?
Reverse the operation — divide by the same factor instead of multiplying by it.
Is this acres to square feet conversion exact?
The underlying factor is the internationally defined one, so the only rounding happens when the result is displayed. The table below shows values rounded to 2 decimal places.