Feet-Inch Calculator by Atlas

Feet-Inch Calculator by Atlas does tape-measure math the way you write it: 5' 7 3/8" plus 2' 6 3/4". EASY TO READ • A plus B in feet, inches and fractions. Big numbers and a big keypad on one screen; stairs, rafters, board feet and rounding are under More. FEET-INCH-FRACTION MATH • Add, subtract, multiply and divide feet, inches and fractions • Type it naturally: 5' 7 3/8", 5ft 7-3/8in, 67.375 or 3/4 • Round answers to the nearest 1/4", 1/8", 1/16" or 1/32" • See the result in feet-inches, decimal inches, decimal feet, millimetres and centimetres STAIRS • Enter the total rise, maximum riser height and tread depth • Get the number of risers and the exact riser height, number of treads, total run, stringer length and angle RAFTERS • Enter the run, pitch (rise per 12) and overhang • Get the rafter length, total rise and roof angle BOARD FEET • Thickness × width × length × quantity, with an optional cost per board foot The app shows every formula it uses. Always check your local building code, especially for stairs. Results are estimates; measure twice. Free, with no ads and no account needed. After the first load it also works offline. Made by AtlasOperator.ai, a small team building simple, single-purpose tools for the trades. Questions or a feature request? Email [email protected].

First public release.