How to convert acres to square feet
To convert acres to square feet, multiply by 43,560. Area conversions are essential for real estate, flooring, land surveys, farming and map reading.
Acre to Square Foot conversion table
| Acre (ac) | Square Foot (ft²) |
|---|---|
| 0.1 ac | 4,356 ft² |
| 0.5 ac | 21,780 ft² |
| 1 ac | 43,560 ft² |
| 2 ac | 87,120 ft² |
| 3 ac | 130,680 ft² |
| 4 ac | 174,240 ft² |
| 5 ac | 217,800 ft² |
| 10 ac | 435,600 ft² |
| 20 ac | 871,200 ft² |
| 25 ac | 1,089,000 ft² |
| 50 ac | 2,178,000 ft² |
| 100 ac | 4,356,000 ft² |
| 500 ac | 21,780,000 ft² |
| 1,000 ac | 43,560,000 ft² |
About the units
Acre (ac)
An acre equals 43,560 square feet (4,046.8564224 m²) and is used for land in the US and UK.
Square Foot (ft²)
A square foot equals exactly 0.09290304 m² and is the standard unit for US home sizes.
How to use this converter
- Type the number of acres (ac) in the input box.
- The result in square feet appears instantly — no button needed.
- See the same value in every other area unit just below.
- Use “Swap units” to convert square feet back to acres.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many square feet are in one acre?
One acre equals 43,560 square feet. 43,560 is the exact factor used by this converter.
How do I convert acres to square feet?
Multiply the value in acres by 43,560. To go the other way, multiply square feet by 0.0000229568411387.
What is 10 ac in ft²?
10 ac = 435,600 ft². Also, 5 ac = 217,800 ft² and 100 ac = 4,356,000 ft².
What is the difference between a acre and a square foot?
An acre equals 43,560 square feet (4,046.8564224 m²) and is used for land in the US and UK. A square foot equals exactly 0.09290304 m² and is the standard unit for US home sizes.
Is this tool free and private?
Yes — the Acre to Square Foot is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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