1 acre (ac) = 43,560 square feet (ft²). To convert, multiply by 43,560: ft² = ac × 43,560. For example, 5 ac = 217,800 ft².
ft² = ac × 43,560
Acres to square feet table
| Acres (ac) | Square feet (ft²) |
|---|---|
| 1 | 43,560 |
| 2 | 87,120 |
| 3 | 130,680 |
| 4 | 174,240 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 25 | 1,089,000 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 250 | 10,890,000 |
| 500 | 21,780,000 |
| 1,000 | 43,560,000 |
The two units
Acre (ac). The international acre: 43,560 square feet. The older US survey acre is very slightly larger.
Square foot (ft²). A square one foot on each side.
Because both units are defined in terms of the same base unit, the factor 43,560 is exact, not a rounded measurement.
Convert acres to other units
- Acres to square meters — 1 ac = 4,046.856422 m²
- Acres to square kilometers — 1 ac = 0.0040468564 km²
- Acres to square centimeters — 1 ac = 40,468,564.22 cm²
- Acres to hectares — 1 ac = 0.4046856422 ha
- Acres to square inches — 1 ac = 6,272,640 in²
- Acres to square yards — 1 ac = 4,840 yd²
- Acres to square miles — 1 ac = 0.0015625 mi²
Convert other units to square feet
Questions people ask
- How many square feet are in a acre?
- 43,560, exactly.
- How do you convert acres to square feet?
- ft² = ac × 43,560. It is the same as dividing by 0.0000229568.
- How do you convert square feet back to acres?
- ac = ft² ÷ 43,560. See square feet to acres.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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