How do you convert square foot to ac?

Enter the square foot value in the input field above and the calculator instantly shows the result in ac. The step-by-step formula and a worked example are displayed below the converter.

What is the formula to convert square foot to ac?

The exact conversion formula for square foot to ac is shown in the 'How to Convert' section on this page, along with a reference table of common values.

Can I convert ac back to square foot?

Yes. Click the swap button (⇄) between the two fields to reverse the direction. You can then enter a ac value and get the equivalent in square foot.

Area Converter

Square Foot to Acre Conversion

Please provide values below to convert square foot [ft²] to acre [ac], or vice-versa.

Square Foot (ft²)

ft²

Acre (ac)

Result

How to Convert Square Foot to Acre

Formula

What is a Square Foot?

A square foot is an imperial/US customary unit of area equal to a square with sides of one foot (12 inches). It is widely used in real estate and construction.

What is a Acre?

An acre equals 43,560 square feet or 4,840 square yards.