Feet and Inches Calculator

Perform mixed feet-and-inches arithmetic with automatic normalization and metric conversions.

A feet

A inches

Operation

B feet

B inches

—Feet + inches

—Decimal feet

—Total inches

—Centimeters

—Inches rounded to the nearest 1/16 for the fractional display.

How to use this Feet and Inches Calculator

Add or subtract feet and inches and convert the result to decimal length units. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.