Feet-Inch Fraction Calculator

How to use this calculator

Enter each measurement as feet, inches, and the nearest 1/16″ fraction, pick add or subtract, and the result updates instantly — as a clean feet-inch-fraction reading plus decimal inches and feet for anyone who needs to punch it into a CAD program or cut list spreadsheet.

Why fractions trip people up

Tape measures don’t work in decimals, but most digital tools do — so converting “5 feet 3 and 3/8 inches” into something you can add by hand means finding a common denominator every time. This calculator does that conversion internally and simplifies the fraction back down automatically (so you get 1/2, not 8/16).