Convert Acre to Square Foot
Use this free converter to change acres (ac) into square feet (ft²). Acre and square foot both measure area. As a quick reference, 1 ac equals 43560 ft², and 1 ft² equals 0.000022956841 ac.
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Square Foot (ft²)
43560
1 ac = 43560 ft²
Area conversion table
| Acre | Square Foot |
|---|---|
| 0.01 | 435.6 |
| 0.1 | 4356 |
| 0.5 | 21780 |
| 1 | 43560 |
| 2 | 87120 |
| 3 | 130680 |
| 5 | 217800 |
| 10 | 435600 |
| 20 | 871200 |
| 25 | 1089000 |
| 50 | 2178000 |
| 100 | 4356000 |
| 1,000 | 43560000 |
How to convert Acre to Square Foot
Multiply the acre value by 43560 to get square feet.
- Enter the number of acres you want to convert.
- The converter instantly shows the equivalent value in square feet.
- Worked example: 15 ac × 43560 = 653400 ft².
- Use the swap button to reverse the conversion (square foot to acre).
About these units
Acre (ac)
- Definition
- An acre (ac) is a unit of land area equal to 43,560 square feet, or about 4,047 square meters.
- History
- Originally the area a yoke of oxen could plough in a day, it was standardised in medieval England.
- Current use
- Acres measure farmland and real-estate plots in the US and UK.
Square Foot (ft²)
- Definition
- A square foot (ft²) is the area of a square one foot on each side, about 0.093 square meters.
- History
- It derives from the foot and is deeply embedded in US and UK property practice.
- Current use
- Square feet are the standard unit for real-estate floor area in the US and UK.
Frequently asked questions
How many square feet are in a acre?
There are 43560 ft² in 1 ac. To convert, multiply the number of acres by 43560.
How do I convert acres to square feet?
Multiply the acre value by 43560 to get square feet. For example, 10 ac = 435600 ft².
Is this acre-to-square foot converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Acre to other area units
| Unit | 1 Acre equals |
|---|---|
| Square Meter (m²) | 4046.8564 m² |
| Square Kilometer (km²) | 0.0040468564 km² |
| Square Centimeter (cm²) | 40468564 cm² |
| Square Mile (mi²) | 0.0015625 mi² |
| Square Yard (yd²) | 4840 yd² |
| Square Foot (ft²) | 43560 ft² |
| Square Inch (in²) | 6272640 in² |
| Hectare (ha) | 0.40468564 ha |