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Square foot to Acre Converter

Square foot to Acre Converter

1 ft² = 0.000023 ac — convert instantly with formula and table.

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Type a value above and it converts instantly — no button to press, no page reload, and the math runs entirely in your browser.

Quick answer: one square foot equals 0.00002296 acres. So to convert square feet to acres, multiply by 0.00002296.

How to convert square feet to acres

acres = square feet × 0.0000229568

The square foot rules North American real estate: homes, offices and rentals are all priced and compared per square foot.

The acre — historically the area a yoke of oxen could plow in one day — equals 43,560 square feet and remains the standard US unit for land parcels.

Square foot to Acre conversion table

Square foot (ft²)Acre (ac)
0.01 ft²0.00000023 ac
0.1 ft²0.0000023 ac
0.25 ft²0.00000574 ac
0.4 ft²0.00000918 ac
0.75 ft²0.00001722 ac
1.25 ft²0.0000287 ac
1.75 ft²0.00004017 ac
2.5 ft²0.00005739 ac
3.5 ft²0.00008035 ac
4.5 ft²0.00010331 ac
6 ft²0.00013774 ac
8 ft²0.00018365 ac
10 ft²0.00022957 ac
12 ft²0.00027548 ac
14 ft²0.0003214 ac
16 ft²0.00036731 ac
18 ft²0.00041322 ac
20 ft²0.00045914 ac
24 ft²0.00055096 ac
26 ft²0.00059688 ac
30 ft²0.00068871 ac
35 ft²0.00080349 ac
45 ft²0.001033 ac
55 ft²0.001263 ac
65 ft²0.001492 ac
75 ft²0.001722 ac
85 ft²0.001951 ac
95 ft²0.002181 ac
110 ft²0.002525 ac
125 ft²0.00287 ac
175 ft²0.004017 ac
250 ft²0.005739 ac
350 ft²0.008035 ac
450 ft²0.010331 ac
600 ft²0.013774 ac
750 ft²0.017218 ac
900 ft²0.020661 ac
1,500 ft²0.034435 ac
2,500 ft²0.057392 ac
10,000 ft²0.229568 ac

Need the opposite direction? Use the Acre to Square foot converter, or read our complete guide to area conversions for every formula in one place.

Frequently asked questions

How many acres are in one square foot?

One square foot equals 0.00002296 acres. Multiply any square foot value by 0.00002296 to get acres.

What is 10 square feet in acres?

10 square feet equal 0.00022957 acres (10 × 0.000023).

Is the square foot to acre conversion exact?

The conversion factor used here (0.0000229568) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.

Is my data stored when I use this converter?

No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.