How do you convert square foot to km2?

Enter the square foot value in the input field above and the calculator instantly shows the result in km2. The step-by-step formula and a worked example are displayed below the converter.

What is the formula to convert square foot to km2?

The exact conversion formula for square foot to km2 is shown in the 'How to Convert' section on this page, along with a reference table of common values.

Can I convert km2 back to square foot?

Yes. Click the swap button (⇄) between the two fields to reverse the direction. You can then enter a km2 value and get the equivalent in square foot.

Area Converter

Square Foot to Square Kilometer Conversion

Please provide values below to convert square foot [ft²] to square kilometer [km²], or vice-versa.

Square Foot (ft²)

ft²

Square Kilometer (km²)

km²

Result

How to Convert Square Foot to Square Kilometer

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 Kilometer?

A square kilometer is a metric unit of area equal to one million square meters.