TapelineCalc: Feet Inch Calc

Decimals guess. Fractions don't.

TapelineCalc is a feet-inch-fraction calculator built for the trades: framing, finish work, concrete, stairs, roofs. Type measurements the way you read a tape — feet, inches, fractions — and get exact answers, not decimals pretending to be fractions.

EXACT FRACTION MATH
• Add, subtract, multiply and divide feet-inch-fraction dimensions
• Results stay exact: 25' 7-1/4" means 25' 7-1/4", not 25.604166…
• Decimal inches and metric shown alongside every result
• Fraction precision you choose, from 1/2 down to 1/64

THE TAPE
• Every entry and every step stays on the tape above the keypad
• A running total after each step — check your math at a glance
• One-tap back to fix the last entry without clearing the job

THE HONESTY FLAG
• If a display value has to round to your chosen precision, the app tells you: "≈ TO NEAREST 1/16"
• The math underneath stays exact — only the display rounds, and never silently

SEVEN JOBSITE ESTIMATORS
• Stairs — risers, treads, total run, stringer length
• Concrete — slabs, footings, columns: volume, bags or yards, waste
• Roof pitch — rise, run, rafter length
• Area — multiple regions, minus openings; ft², yd², m², acres
• Gravel & mulch — bed volume by material
• Diagonal — square your layout with one check
• Length convert — feet-inch, decimal, metric
• Your inputs are saved per tool — tomorrow's job picks up where you left off

CITED, NOT GUESSED
Every constant the estimators use — densities, yields, code limits — is cited inside the app. Check the math yourself.

WORKS ANYWHERE
• 100% offline. No account, no sign-up, no cloud.
• Every tool is free, forever.
• One optional purchase removes ads. Nothing else is paid, ever.