Fraction Feet Inch Calculator

Tape-measure math for the job site. Add, subtract, multiply and divide feet, inches and fractions, get square and cubic feet, and see every answer in inches, feet and metric. Tools for stairs, roof pitch, hip, valley and jack rafters, rake walls, miters and crown, concrete, board feet, circles and arcs, and cost per unit are built in, with a unit converter. Hold any tool result to send it to the calculator, share a stair layout as a PDF, keep your last answer on a Home Screen widget, and open a short guide from every tool. No ads, and it works offline.

WHAT YOU GET
• Feet-inch-fraction calculator: work with lengths like 5' 7-3/8" exactly, with %, √, x², π, brackets and memory keys
• Area and volume: multiply lengths for square feet, cubic feet and cubic yards, and divide back to a length
• Every answer in every unit: total inches, decimal feet, cm, mm and m under each result
• Precision you choose, from 1/2" to 1/64"
• History tape: every answer saved; tap a row to reuse its exact value, or copy and share it
• Pro tools: stairs (risers, treads, stringer), roof pitch and slope, hip, valley and jack rafters, rake walls, miters and crown, concrete in cubic yards and bags, board feet, circles and arcs, cost per unit, and a unit converter
• A short guide with a worked example on every tool
• Send any tool's length, area or volume to the calculator
• Share a stair layout as a one-page PDF
• Home Screen widget with your last answer and shortcuts to Stairs, Concrete and Roof pitch
• In English and Spanish

Every feature needs the trial or a purchase: start the yearly plan with a 7-day free trial (new subscribers), or buy Lifetime once. Prices are listed under In-App Purchases.

Terms of Use: https://klm-labs.github.io/construction-calc/terms/
Privacy Policy: https://klm-labs.github.io/construction-calc/privacy/