How do you convert square foot to mm2?

Enter the square foot value in the input field above and the calculator instantly shows the result in mm2. The step-by-step formula and a worked example are displayed below the converter.

What is the formula to convert square foot to mm2?

The exact conversion formula for square foot to mm2 is shown in the 'How to Convert' section on this page, along with a reference table of common values.

Can I convert mm2 back to square foot?

Yes. Click the swap button (⇄) between the two fields to reverse the direction. You can then enter a mm2 value and get the equivalent in square foot.

Area Converter

Square Foot to Square Millimeter Conversion

Please provide values below to convert square foot [ft²] to square millimeter [mm²], or vice-versa.

Square Foot (ft²)

ft²

Square Millimeter (mm²)

mm²

Result

How to Convert Square Foot to Square Millimeter

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 Square Millimeter?

A square millimeter is 10⁻⁶ of a square meter, used in engineering.