Square Feet to Acres Converter
Convert square feet to acres instantly. One square foot equals exactly 0.00002295684 acres. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert square feet to acres
Worked example: convert 7 square feet to acres. Using acres ← square feet ÷ 43,560, we get 7 × 0.00002295684114 = 0.00016069789 ac. To check the result, convert back: 0.00016069789 ac ÷ 0.00002295684114 = 7 sq ft.
Square feet to acres chart
| Square feet (sq ft) | Acres (ac) |
|---|---|
| 1 sq ft | 0.00002295684 ac |
| 2 sq ft | 0.00004591368 ac |
| 3 sq ft | 0.00006887052 ac |
| 4 sq ft | 0.00009182736 ac |
| 5 sq ft | 0.0001147842 ac |
| 6 sq ft | 0.000137741 ac |
| 8 sq ft | 0.0001836547 ac |
| 10 sq ft | 0.0002295684 ac |
| 12 sq ft | 0.0002754821 ac |
| 15 sq ft | 0.0003443526 ac |
| 20 sq ft | 0.0004591368 ac |
| 25 sq ft | 0.000573921 ac |
| 30 sq ft | 0.0006887052 ac |
| 40 sq ft | 0.0009182736 ac |
| 50 sq ft | 0.001147842 ac |
| 75 sq ft | 0.001721763 ac |
| 100 sq ft | 0.002295684 ac |
| 150 sq ft | 0.003443526 ac |
| 200 sq ft | 0.004591368 ac |
| 250 sq ft | 0.00573921 ac |
| 500 sq ft | 0.01147842 ac |
| 1,000 sq ft | 0.02295684 ac |
Acres to square feet (reverse)
| Acres (ac) | Square feet (sq ft) |
|---|---|
| 1 ac | 43,560 sq ft |
| 2 ac | 87,120 sq ft |
| 5 ac | 217,800 sq ft |
| 10 ac | 435,600 sq ft |
| 20 ac | 871,200 sq ft |
| 50 ac | 2,178,000 sq ft |
| 100 ac | 4,356,000 sq ft |
| 250 ac | 10,890,000 sq ft |
| 500 ac | 21,780,000 sq ft |
| 1,000 ac | 43,560,000 sq ft |
About the square foot and the acre
A square foot is the area of a square with 1-foot sides. It is the standard unit for house, apartment, office and retail space in the United States, Canada and the UK property market.
An acre is 43,560 square feet. It is the traditional unit for farmland and large property in the US and UK; an American football field including end zones covers about 1.3 acres.
One acre equals 43,560 square feet, which makes the acre the larger unit of the two.
Everyday sizes in square feet and acres
| Everyday example (approximate) | In square feet | In acres |
|---|---|---|
| A bedroom | 129.17 sq ft | 0.0029653 ac |
| A parking space | 134.55 sq ft | 0.0030888 ac |
| A one-bedroom apartment | 538.2 sq ft | 0.012355 ac |
| A tennis court | 2,806.8 sq ft | 0.064435 ac |
| A basketball court | 4,699.5 sq ft | 0.10789 ac |
| A hectare | 107,640 sq ft | 2.4711 ac |
Square feet to acres FAQ
How many acres are in one square foot?
One square foot equals exactly 0.00002295684114 acres. In the other direction, one acre equals 43,560 square feet.
How do I convert square feet to acres without a calculator?
convert 7 square feet to acres. Using acres ← square feet ÷ 43,560, we get 7 × 0.00002295684114 = 0.00016069789 ac. To check the result, convert back: 0.00016069789 ac ÷ 0.00002295684114 = 7 sq ft. For a quick estimate, round the factor to 0.000023. Then 7 sq ft is about 0.000161 ac, compared with the exact 0.000160698 ac (an error of 0.19%). That is close enough for planning, but use the calculator above when the number matters.
What is a bedroom in acres?
A bedroom is about 129.17 square feet, which is 0.0029653 acres. Treat that as an approximate everyday figure rather than an official measurement.
Are the square feet and acres the same in every country?
The square foot is exactly 0.09290304 m² (the square of the international foot). The international acre is exactly 4,046.8564224 m²; the US survey acre differs by about 0.0002%.