The Right Calculator for the Job
Explore thousands of free calculators to simplify your next home renovation, electrical project, or household tasks such as converting from feet to inches.
With over 2,500 calculators, Inch Calculator is one of the largest and most trusted sites for calculations in math & science education, construction planning, electrical engineering, automotive, and several other fields.
Feet and Inches Length Measurement Calculator
Add and subtract inches (as a decimal or fraction), feet, centimeters, and millimeters. For example, enter a value such as 6' 8 5/16" + 12cm using our feet and inches length measurement calculator. Get results in inches, feet, centimeters, and millimeters automatically and see imperial and metric measurements.
Results Converted to Inches, Feet, Millimeters, and Centimeters
Imperial Units0 Inches (fraction)
Metric Units0 Millimeters
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About Inch Calculator
We aim to simplify the lives of professionals, students, homeowners, and DIYers with accurate yet easy to use calculators and tools to solve everyday problems.
Our calculators are designed to provide the right information for you, whether you only have time for a quick answer or want to understand the whole process.
We work closely with industry professionals to ensure our calculators are as accurate as possible, and we show you how each calculator works.
Learn more about us.