Feet and Inches Calculator

Add, subtract, multiply, and divide feet, inches, and fractions with precision. Perfect for construction, woodworking, and home improvement projects.

All Operations
+, -, ×, ÷
Precision
To 1/16”
Export
Results
Share
Instantly

Enter Measurements

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Enter your measurements and click Calculate

About Feet and Inches Calculator

Our Feet and Inches Calculator is designed specifically for professionals and DIY enthusiasts who work with imperial measurements. Whether you’re a carpenter, contractor, or homeowner, this tool makes it easy to add, subtract, multiply, and divide feet, inches, and fractional inches without manual conversion.

How Imperial Measurements Work

The imperial system uses feet and inches, where 1 foot equals 12 inches. Fractional inches are commonly expressed as 1/2, 1/4, 1/8, and 1/16 of an inch. This calculator handles all conversions automatically, simplifying fractions and converting between formats as needed.

Key Features

  • • Add, subtract, multiply, and divide feet and inches
  • • Automatic fraction simplification
  • • Multiple output formats (feet/inches, decimal, metric)
  • • Precision to 1/16 of an inch
  • • Export and share calculations
  • • Mobile-friendly interface

Common Use Cases

  • • Calculating total lengths for lumber cuts
  • • Measuring rooms and spaces for flooring
  • • Planning furniture dimensions
  • • Determining material quantities
  • • Creating scaled drawings
  • • Woodworking project planning

Calculation Formula

The calculator first converts all measurements to total inches, performs the operation, then converts back to feet, inches, and fractions. For addition: Total Inches = (Feet₁ × 12 + Inches₁ + Fraction₁) + (Feet₂ × 12 + Inches₂ + Fraction₂)

Tips for Accurate Measurements

  • • Always measure twice, cut once
  • • Use a quality tape measure marked in 16ths
  • • Account for blade width in cutting
  • • Double-check fraction inputs
  • • Keep calculations organized and labeled

Frequently Asked Questions

Have more questions? Contact us

What Users Say

4.9
Based on 1,250 reviews

This calculator has saved me countless hours on job sites. No more manual conversions or calculation errors!

M
Mike Johnson
General Contractor
September 15, 2024

Perfect for quick measurements and cuts. The fraction handling is exactly what I needed.

S
Sarah Chen
Carpenter
September 20, 2024

Made my home renovation project so much easier. Highly recommend for anyone working with measurements.

D
David Rodriguez
DIY Enthusiast
September 25, 2024

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