Online calculator to convert square feet to acres (ft2 to ac) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Area units.
Conversion Calculator
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Convert ft2 to acres
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between square feet and acres.
What is a square foot (ft2)?
A square foot is a unit of area in both US Customary Units as well as the Imperial System. The symbol for square foot is ft2 or sq ft. There are 43,560 square feet in an acre. A square foot is calculated as the area of a square that has 1 foot on each side.
What is an acre (ac)?
An acre is a unit of area in both US Customary Units as well as the Imperial System. The symbol for acre is ac. There are 0.00002296 acres in a square foot.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from ft2 to acres is:
acres = ft2 ÷ 43,560
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from square feet to acres (ft2 to ac).
Square Feet to Acres Conversion Example
Task: Convert 250,000 square feet to acres (show work) Formula: ft2 ÷ 43,560 = acres Calculations: 250,000 ft2 ÷ 43,560 = 5.73921028 acres Result: 250,000 ft2 is equal to 5.73921028 acres
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from ft2 to acres.
Square Feet to Acres Conversion Chart
square feet (ft2) | acres (ac) |
---|---|
1 ft2 | 0.00002296 acres |
2 ft2 | 0.00004591 acres |
3 ft2 | 0.00006887 acres |
4 ft2 | 0.00009183 acres |
5 ft2 | 0.00011478 acres |
6 ft2 | 0.00013774 acres |
7 ft2 | 0.0001607 acres |
8 ft2 | 0.00018365 acres |
9 ft2 | 0.00020661 acres |
10 ft2 | 0.00022957 acres |
20 ft2 | 0.00045914 acres |
30 ft2 | 0.00068871 acres |
40 ft2 | 0.00091827 acres |
50 ft2 | 0.00114784 acres |
75 ft2 | 0.00172176 acres |
100 ft2 | 0.00229568 acres |
250 ft2 | 0.00573921 acres |
500 ft2 | 0.01147842 acres |
750 ft2 | 0.01721763 acres |
1,000 ft2 | 0.02295684 acres |
2,500 ft2 | 0.0573921 acres |
5,000 ft2 | 0.11478421 acres |
7,500 ft2 | 0.17217631 acres |
10,000 ft2 | 0.22956841 acres |
25,000 ft2 | 0.57392103 acres |
50,000 ft2 | 1.14784206 acres |
75,000 ft2 | 1.72176309 acres |
100,000 ft2 | 2.29568411 acres |
250,000 ft2 | 5.73921028 acres |
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