Convert Acres to Square Feet
ac to ft² · area conversion
What are acres and square feet?
An acre is 43,560 square feet (about 4,047 m²), the traditional unit for land area. A square foot is a square 12 inches on each side (about 0.0929 m²), standard for US floor area. For scale: a tennis court is about 261 m² (2,808 ft²), and a soccer pitch is roughly 0.7 hectares.
How to convert acres to square feet
1 ac = 43,560 ft². To convert, multiply the number of acres by 43,560. For example, 5 ac = 217,800 ft², and 20 ac = 871,200 ft². To go the other way, multiply square feet by 0.0000229568 (since 1 ft² = 0.0000229568 ac).
Acres to Square Feet conversion table
| Acres (ac) | Square Feet (ft²) |
|---|---|
| 1 | 43,560 |
| 5 | 217,800 |
| 10 | 435,600 |
| 25 | 1,089,000 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 1,000 | 43,560,000 |
FAQ
What is 1 ac in ft²?
1 ac = 43,560 ft². To convert any amount, multiply the number of acres by 43,560.
How do I convert square feet back to acres?
Go the other way: 1 ft² = 0.0000229568 ac, so multiply square feet by 0.0000229568 to get acres.
Is a acre bigger than a square feet?
Yes — 1 ac is the larger unit, equal to 43,560 ft².
Are these area conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.