How to convert acres to square feet
One acre equals 43,560 square feet. To convert, multiply the number of acres by 43,560:
Mental-math shortcut: An acre is exactly 43,560 ft². A quarter-acre lot is 10,890 ft², and half an acre is 21,780 ft².
Example
Convert 1 acres to square feet: 1 ac × 43,560 = 43,560 ft².
Acres to Square Feet conversion chart
| Acres (ac) | Square Feet (ft²) |
|---|---|
| 0.1 | 4,356 |
| 0.2 | 8,712 |
| 0.25 | 10,890 |
| 0.33 | 14,374.8 |
| 0.5 | 21,780 |
| 0.75 | 32,670 |
| 1 | 43,560 |
| 1.5 | 65,340 |
| 2 | 87,120 |
| 2.5 | 108,900 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 40 | 1,742,400 |
| 100 | 4,356,000 |
What is an acre?
An acre is 43,560 square feet, or about 4,047 square meters. It is the traditional unit for land in the US and UK. An American football field including both end zones covers about 1.32 acres.
What is a square foot?
A square foot (ft² or sq ft) is the area of a square 1 foot on each side, exactly 0.09290304 m². It is the standard unit for home size, flooring and real-estate listings in the United States — a 10 × 12 ft bedroom is 120 square feet.
Frequently asked questions
How many square feet is one acre?
One acre is 43,560 square feet.
How do I convert acres to square feet?
Multiply the value in acres by 43,560. For example, 1 ac × 43,560 = 43,560 ft².
What is 0.25 ac in square feet?
0.25 ac is 10,890 square feet.
How do I convert square feet to acres?
Multiply square feet by 0.000023 (or divide by 43,560).
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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