TradesCalculator

Stop doing construction math in your head — or on paper you'll lose. Trades Calculator packs 15 job-ready construction calculators, a feet-and-inches fraction calculator and a unit converter into one fast, fully offline app. Made for carpenters, contractors, builders and DIY homeowners. CALCULATORS FOR EVERY TASK • Stairs — risers, run and stringer length • Common Rafter — length, rise and cut angles from pitch • Wall Studs — stud count at 16" or 24" on center • Deck Boards — board count and linear feet • Concrete — slab, footing and column volume with bag counts • Drywall — sheet count from wall area • Paint — gallons from wall area and coats • Roofing — roof area, squares and bundles • Tile & Flooring — boxes with waste factor • Mulch & Gravel — cubic yards and bag count • Lumber Board Feet — board footage and cost • Grade & Slope — rise over run, percentage and degrees • Fraction ↔ Decimal — tape fractions to decimals and back TAPE-MEASURE MATH Type real site math like 12' 6-1/2" + 3' 2" and get exact fractions back — no decimal conversion headaches. Memory keys (M+, M−, MR) and a running tape log keep multi-step takeoffs organized. UNITS YOUR WAY Imperial or metric, switchable any time. Fraction precision 1/16" (tape) or 1/64" (exact). BUILT FOR THE FIELD • Outdoor mode — bright high-contrast theme for direct sunlight • Every result is saved automatically — reopen any calculation with one tap • Favorites keep your most-used calculators at the top • 100% offline — no account, no sign-in, works in basements and job sites with no signal HONEST ABOUT THE MATH Formula defaults follow common IRC values, but your local building code is the authority. All results are computed on device. Verify before cutting. Download Trades Calculator and leave the pencil behind.