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📏 Feet and Inches Calculator

Add or subtract two measurements given in feet and inches, and see the total converted into other units.

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Working with feet and inches

Measurements in the imperial system are often expressed as a combination of feet and inches, such as 5 feet 6 inches. Adding or subtracting these values by hand requires careful carrying between the two units, which is where mistakes commonly happen.

How this calculator works

Enter two measurements in feet and inches, choose whether to add or subtract them, and the calculator converts both to total inches (1 foot = 12 inches), performs the operation, and converts the result back into feet and remaining inches. It also shows the equivalent in centimeters and meters.

This tool is useful for carpentry, home improvement, sewing, and any other project involving imperial measurements. For precise construction work, always double-check critical measurements with a physical tape measure.

Last reviewed August 2026