How to convert square feet to acres
One square foot equals 0.000023 acres. To convert, multiply the number of square feet by 0.000023 (or divide by 43,560):
Mental-math shortcut: Divide square feet by 43,560: a 10,890 ft² lot is exactly 1/4 acre.
Example
Convert 10,000 square feet to acres: 10,000 ft² × 0.000023 = 0.229568 ac.
Square Feet to Acres conversion chart
| Square Feet (ft²) | Acres (ac) |
|---|---|
| 1,000 | 0.022957 |
| 2,000 | 0.045914 |
| 5,000 | 0.114784 |
| 7,500 | 0.172176 |
| 10,000 | 0.229568 |
| 10,890 | 0.25 |
| 15,000 | 0.344353 |
| 20,000 | 0.459137 |
| 21,780 | 0.5 |
| 30,000 | 0.688705 |
| 43,560 | 1 |
| 50,000 | 1.1478 |
| 100,000 | 2.2957 |
| 250,000 | 5.7392 |
| 435,600 | 10 |
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.
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.
Converting the other way? Use the Acres to Square Feet converter.
Frequently asked questions
How many acres is one square foot?
One square foot is 0.000023 acres.
How do I convert square feet to acres?
Multiply the value in square feet by 0.000023. For example, 10,000 ft² × 0.000023 = 0.229568 ac.
What is 43,560 ft² in acres?
43,560 ft² is 1 acres.
How do I convert acres to square feet?
Multiply acres by 43,560 (or divide by 0.000023). You can also use our Acres to Square Feet converter.
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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