US jobsite math
Feet, inches & fractions without converting everything first.
Add or subtract field dimensions, multiply or divide a length by a scalar, and split a run into equal spaces while keeping tape-measure fractions visible.
Length arithmetic
Jobsite length calculator
Examples: 7' 3 5/8", 87 5/8 in, or 7.302 ft. Bare numbers are inches.
Equal spacing
Divide a measured run evenly
Useful for layout references. It does not choose code-required spacing, structural centers or edge clearances for you.
Boundary
This tool performs arithmetic only. A spacing result is not a code, structural, fastening, accessibility or manufacturer recommendation. Use the relevant project calculator and current requirements before building.