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