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With over 3,500 calculators, Inch Calculator is one of the largest and most trusted sites for calculations in math & science education, construction planning, electrical engineering, health & fitness, finance, automotive, and several other fields.
Several government agencies and leading publications also trust our work and feature our tools!
Feet and Inches 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" + 12 cm using our feet and inches length measurement calculator. Get results in inches, feet, centimeters, and millimeters.
Feet and Inches Result
Imperial Units
Metric Units
About Inch Calculator
We provide accurate, easy-to-use calculators and tools to simplify life for finance professionals, students, engineers, fitness enthusiasts, contractors, and homeowners.
We thoughtfully design each tool to deliver just the right amount of information—whether you need a quick answer or a deeper understanding of the solution.
To ensure accuracy, we collaborate closely with industry experts and subject-matter specialists, and we make it a point to explain how each calculator works.
Learn more about us and the people dedicated to getting you the correct answer every time.