How to convert acres to square feet
Formula: ft² = ac × 43,560
Worked example: 5 ac → 5 × 43,560 = 217,800 ft²
An acre is exactly 43,560 square feet. A typical quarter-acre suburban lot covers 10,890 sq ft, roughly a square of 104 feet on each side.
Acres to square feet conversion chart
| Acres (ac) | Square feet (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 |
| 6 ac | 261,360 ft² |
| 7 ac | 304,920 ft² |
| 8 ac | 348,480 ft² |
| 9 ac | 392,040 ft² |
| 10 ac | 435,600 ft² |
| 12 ac | 522,720 ft² |
| 15 ac | 653,400 ft² |
| 20 ac | 871,200 ft² |
| 25 ac | 1,089,000 ft² |
| 30 ac | 1,306,800 ft² |
| 40 ac | 1,742,400 ft² |
| 50 ac | 2,178,000 ft² |
| 75 ac | 3,267,000 ft² |
| 100 ac | 4,356,000 ft² |
| 250 ac | 10,890,000 ft² |
| 500 ac | 21,780,000 ft² |
| 1,000 ac | 43,560,000 ft² |
What is an acre?
The acre equals 43,560 square feet, about 4,047 m² or 0.405 hectare. It is the US and UK unit for land, lots and farms. An American football field, end zones included, covers about 1.32 acres.
What is a square foot?
The square foot is the area of a square one foot on each side, exactly 0.09290304 m². It is the US unit for home sizes, rents, flooring, drywall and paint coverage. Listings often abbreviate it as sq ft or SF.