Add, subtract, multiply imperial measurements
This calculator handles the tricky math of working with feet, inches, and fractions - the way real measurements work on the job site.
Common fractions: 1/16", 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 7/8" are the most common. The calculator converts everything to find the exact answer.
Examples:
• 12' 6 1/2" + 8' 9 3/4" = 21' 4 1/4"
• 16' 3" − 5' 8 1/2" = 10' 6 1/2"
• 8' 6" × 2 = 17' 0"
Decimal conversion: Results show both fractional and decimal inches for use with digital tools and CAD software.
How to use: Enter your measurements in feet, inches, and fractions. Select the operation. Get results in both fractional and decimal format.