Acres to Square Feet Converter
How to convert acres to square feet
square feet = acres × 43,560
To convert acres to square feet, multiply the number of acres by 43,560.
1 ac = 43,560 ft²
Examples
- 1 ac × 43,560 = 43,560 ft²
- One square mile: 640 ac × 43,560 = 27,878,400 ft²
Good to know
One acre is exactly 43,560 square feet.
This is the international acre. The US survey acre, based on the survey foot that was retired at the end of 2022, is about 4,046.873 m², a difference of roughly 4 parts per million.
Acres to square feet conversion table
| Acres (ac) | Square feet (ft²) |
|---|---|
| 0.25 ac | 10,890 ft² |
| 0.5 ac | 21,780 ft² |
| 0.75 ac | 32,670 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 |
| 40 ac | 1,742,400 ft² |
| 50 ac | 2,178,000 ft² |
| 100 ac | 4,356,000 ft² |
| 160 ac | 6,969,600 ft² |
| 500 ac | 21,780,000 ft² |
| 640 ac | 27,878,400 ft² |
| 1,000 ac | 43,560,000 ft² |
Unit definitions
- Acre (ac)
- An acre is 43,560 square feet, exactly 4,046.8564224 square meters. It is the usual unit for land area in the United States and is still common in the United Kingdom.
- Square foot (ft²)
- A square foot is the area of a square with 1-foot sides, exactly 0.09290304 square meters. It is the standard unit for floor area in the United States.