Free Construction Calculators for Contractors
Fast, accurate estimators for asphalt, concrete, roofing, and more. Built for job sites.
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Asphalt Calculator
Free asphalt tonnage calculator. Calculate how many tons of asphalt, cubic yards, and cost you need for a driveway, parking lot, or blacktop paving job.
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Popular Calculators
Asphalt Calculator
Free asphalt tonnage calculator. Calculate how many tons of asphalt, cubic yards, and cost you need for a driveway, parking lot, or blacktop paving job.
Square Footage Calculator
Free square footage calculator for rooms, flooring, tile, carpet and irregular shapes. Calculate sq ft, square meters, square yards, waste, material quantities and costs.
Electrical Load Calculator
Free residential electrical load calculator per NEC Article 220. Calculate total VA, service amperage, 100A vs 200A panel capacity, EV charger additions, and service conductor wire sizing.
Deck Footing Calculator
Free deck footing calculator per IRC R507. Size concrete footings, count posts, and estimate concrete yards for your deck based on tributary load and soil bearing capacity.
Concrete Block Calculator
Free concrete block calculator and CMU wall estimator. Calculate how many concrete blocks you need to build a wall, concrete block fill (grout yards), mortar bags, rebar, and total wall cost.
Insulation Calculator
Calculate insulation R-value, required thickness, batt packages, blown-in bags, spray foam board feet, and estimated installation cost for attics, walls, floors, and roofs.
Siding Calculator
Free siding calculator for houses and buildings. Calculate siding area in sq ft, squares, panels, waste, and material cost for vinyl, fiber cement, wood, and metal siding.
Stair Calculator
Free stair calculator with IRC & IBC code compliance. Calculate exact riser height, number of steps, tread depth, stringer 2×12 cut length, pitch angle, and headroom clearance.
Bathroom Remodel Cost Calculator
Calculate bathroom remodel costs by size, finish level, plumbing changes, labor, materials and upgrades. Get a low-to-high renovation estimate instantly.
Battery Backup Calculator
Calculate battery bank capacity, inverter size, backup runtime, and solar recharge requirements for home UPS and backup power systems. Supports LiFePO₄, AGM, and lead-acid batteries.
Gutter Cleaning Cost Calculator
Free gutter cleaning cost calculator. Estimate professional gutter cleaning by linear feet, stories, debris, access, gutter guards, and downspout flushing.
Demolition Cost Calculator
Free demolition cost calculator. Estimate house demolition cost, debris volume, dumpster loads, and total project cost by structure type, square footage, and method.
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How it works
Enter measurements
Type in your length, width, and depth.
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See material quantities and costs in seconds.
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