Construction Calc vs HB Construction Calculator

The only offline calculator you need on the job site. No internet? No problem. Contractor Calc works 100% offline — so you get fast, accurate material estimates right when you need them. Estimate 8 key materials in seconds: Concrete (slabs, footings) Drywall (sheets with waste) Paint (gallons & liters) Roofing (squares with pitch) Gravel & Mulch (cubic yards/m³) Tile (tiles with cuts) Insulation (ft²/m²) Stairs (riser, tread, stringer) Built for pros, trusted by contractors: • Feet-Inch-Fraction Input — enter 12' 6" like you measure • Imperial & Metric — switch units in Settings • No subscriptions. No ads. No cloud. • All calculations stored locally — your data stays private Perfect for: • Residential & commercial contractors • Carpenters, framers, roofers, painters • DIYers tackling big projects • Estimators preparing bids Join thousands of builders who ditched spreadsheets and paper calculators. Get precise, professional results — every time.

HB Construction Calculator is a powerful construction calculator built for contractors, carpenters, electricians, plumbers, HVAC technicians, concrete crews, estimators, and other construction professionals. Perform feet-inch-fraction math the way measurements are used on the jobsite, quickly convert between imperial and metric units, and access eight specialized construction calculators in one app. Works fully offline. No login. No account required. No paywall. 8 CONSTRUCTION CALCULATORS IN ONE APP ADVANCED CAL Calculate roof pitch, rise, run, diagonal, hip and valley rafters, jack rafters, stairs, circles, board feet, studs, blocks, drywall, footings, roofing squares, and more. MASTER 5 An everyday construction and carpentry calculator for stairs, arcs, irregular pitch calculations, jack rafters, weight, cost, and paperless tape measurements. ELECTRICAL CALCULATOR Perform electrical calculations including Ohm's Law, Kirchhoff equations, wire sizing, voltage drop, conduit fill, motor full-load current, motor protection, grounding, and other common electrical calculations. PIPE AND PLUMBING CALCULATOR Calculate pipe offsets, rolling offsets, fitting allowances, cut lengths, 45-degree fittings, flow, pressure, pipe sizing, and other common plumbing measurements. CONCRETE AND MASONRY CALCULATOR Calculate concrete volume, cubic yards, concrete bags, footings, walls, blocks, rebar, stairs, drop, and estimated truck loads. HVAC AND SHEET METAL CALCULATOR Calculate duct takeoffs, OGEE offsets, Fan Laws, velocity pressure, FPM, Law of Cosines, stretch-outs, and other HVAC and sheet metal measurements. EXCAVATION AND GRADING CALCULATOR Calculate cut and fill, slopes, percent grade, bank volume, loose volume, compacted volume, swell, shrink, and estimated truck loads. MATERIAL ESTIMATOR Estimate quantities and coverage for paint, tile, decking, fencing, studs, blocks, flooring, sheet goods, brick, gravel, and other construction materials. FEET, INCHES AND FRACTIONS Enter measurements the same way you use them on the jobsite. For example: 12 ft 6 3/8 in There is no need to convert measurements to decimals before calculating. Quickly work with: * Feet and inches * Fractions * Yards * Meters * Square measurements * Cubic measurements * Imperial and metric conversions SAVE YOUR CALCULATIONS Keep important calculations in History so you can return to them later. Your calculations stay organized and available when you need them. CHOOSE YOUR DEFAULT CALCULATOR Choose the calculator you use most from Tools and set it as your default. Your selection is saved so your preferred calculator is ready the next time you open the app. BUILT FOR CONSTRUCTION PROFESSIONALS HB Construction Calculator is designed for: * Contractors * Carpenters * Electricians * Plumbers * HVAC technicians * Concrete and masonry crews * Excavation and grading crews * Estimators * Construction professionals Whether you are measuring lumber, laying out stairs, calculating electrical loads, planning pipe runs, estimating concrete, sizing ductwork, grading a site, or preparing a material takeoff, HB Construction Calculator gives you practical tools directly on your phone. SIMPLE, PRIVATE AND READY FOR THE JOBSITE * Fully offline * No account required * No login * No paywall * No unnecessary setup Open the app and start calculating. HB Construction Calculator — from Handy Bro. Learn More: https://www.handybro.app Terms of Use: https://www.handybro.app/construction_calculator/terms Privacy Policy: https://www.handybro.app/construction_calculator/privacy