Throw away your pencil. Trust your tools.

Standard calculators round your numbers. On a job site, a rounding error isn't just a number—it's a wasted board, a gap in the trim, or a failed inspection.

Carpenter Calc Pro is an industrial-standard carpenter calculator designed for pros who measure in 64ths. Unlike standard apps that convert fractions to decimals (creating drift), our Rational Math Engine keeps every fraction exact.

1/3 × 3 = 1. Not 0.999.

🛡️ THE ZERO-ERROR ADVANTAGE

📏 The Visual Tape Measure (Exclusive)

Don't just read digits. See the cut. The app renders a live, high-contrast tape measure that shows you exactly where the measurement falls. It combines a fraction calculator with a visual readout aligned to industry-standard Red 1F marks.

• Verify 5-3/8" vs 5-1/2" instantly before you mark the lumber.
• Stop squinting at small numbers.

🆕 SMART HISTORY TAPE

• Never lose a number. Swipe up to access your full calculation history.

• Audit your work. Scroll back through measurements to verify your material list without re-measuring.

🧠 The Atomic Engine (Fraction to Decimal)

• True Fractions: Calculations are stored as atomic fractions (1/64th precision), not decimals. No drift. No rounding errors.
• Smart Input: Type "5" then "IN" then "1 / 2" naturally. No confusion.
• Scalar Logic: Effortlessly divide lengths by scalars (e.g., stair stringers: 109" ÷ 15).

🔨 BUILT FOR THE JOBSITE

• Feet & Inch Native: Add, subtract, multiply, and divide mixed units instantly.
• Tactile Feedback: Feel every button press with integrated haptic vibration (Toggle ON/OFF in Settings).
• Rugged UI: High-contrast "Safety Yellow" interface readable in direct sunlight.

🏆 WHO IS THIS FOR?

• Framers: Calculate stud spacing and wall layouts.
• Finish Carpenters: Precision math for crown molding and trim.
• Woodworkers: Exact dimensional analysis for joinery.
• Contractors: Verify sub-contractor measurements instantly.

✅ 100% Ad-Free. Privacy Focused. No Internet Required.

Stop guessing. Get the professional standard today.