Calculate Fractional Measurements Like a Boss

Skip the mental math—build faster! Focus on your project, not fractional measurement math.

Download on the Apple App Store
CraftCalc App

Take the guesswork out of your measurements! Designed specifically for woodworkers, builders, metal workers, and DIY makers, CraftCalc is the only calculator you’ll ever need for fractional and mixed-number measurement calculations.

Seamless Fraction Support

Fractions & Mixed Fractions

Add, subtract, multiply, divide fraction and mixed fraction measurements like a champ. No lost of precision due to conversion from fractions to decimals.

Fractions & Mixed Fractions

Seamless Fractions Input

Enter fraction and mixed fraction numbers seamlessly using the special numerator and denominator buttons. Correct them using the Delete button, just like a regular calculator.

Seamless Fractions Input

Combine Fractions & Decimals

Use fraction, mixed fraction, and decimal numbers in your calculations. No limit on how you can mix them together.

Combine Fractions & Decimals

Length Measurement Conversions

Imperial ↔ Metric Conversion

Imperial ↔ Metric Conversion

Convert Imperial measurements to Metric, and vice versa, e.g. inches to millimeters, meters to feet and inches, etc.

Round to Fractional Inches

Common Fractional Inches Rounding

Round/convert to commonly used fractional inches to accurately find it on your tape measures or rulers, from any fractional or decimal measurements.

Feet & Inches Conversion

Feet & Inches Conversion

Convert any length unit to feet and inches to easily locate larger measurements on your tape measures.

Simple & Clean UI

Familiar Key Layout

Looks just like any regular calculator with familiar buttons layout. Get straight to the measurement calculations you need in no time.

Familiar Key Layout

Common Fractional Inches Denominators

One touch input for commonly used denominators for fractional inches: 1⁄2, 1⁄4, 1⁄8, 1⁄16, 1⁄32, 1⁄64. Makes entering fractional inches a breeze.

Common Fractional Inches