Square feet to Acres Converter (ft² to ac) – Formula & Table

How to convert square feet to acres

One square foot equals 0.0000229568 acres – put the other way, one acre is 43,560 square feet. So divide the number of square feet by 43,560. For example, 5 ft² ÷ 43,560 = 0.0001147842 ac.

Square feet to acres table

Square feet (ft²)	Acres (ac)
0.1 ft²	0.0000022957 ac
0.5 ft²	0.0000114784 ac
1 ft²	0.0000229568 ac
2 ft²	0.0000459137 ac
3 ft²	0.0000688705 ac
4 ft²	0.0000918274 ac
5 ft²	0.0001147842 ac
6 ft²	0.000137741 ac
7 ft²	0.0001606979 ac
8 ft²	0.0001836547 ac
9 ft²	0.0002066116 ac
10 ft²	0.0002295684 ac
15 ft²	0.0003443526 ac
20 ft²	0.0004591368 ac
25 ft²	0.000573921 ac
30 ft²	0.0006887052 ac
50 ft²	0.0011478421 ac
75 ft²	0.0017217631 ac
100 ft²	0.0022956841 ac
250 ft²	0.0057392103 ac
500 ft²	0.0114784206 ac
1,000 ft²	0.0229568411 ac

Need it the other way? Use the acres to square feet converter, or the unit converter for any other area unit.

Questions

How many acres are in a square foot?

1 ft² = 0.0000229568 ac.

How many square feet are in a acre?

1 ac = 43,560 ft².

What is 10 ft² in ac?

10 ft² = 0.0002295684 ac.