Construction calculators.
Know your quantities and costs.
Free construction calculators and practical guides for the next job. Work out what to order, check your markup, and take a printable estimate with you.
Start with the job in front of you
Concrete Slab Calculator
Estimate concrete cubic yards for a rectangular slab using length, width, thickness, and waste.
Gravel Calculator
Estimate cubic yards and tons of gravel from area, depth, and waste.
Tile Calculator
Estimate tile quantity from room area and waste.
Paint Calculator
Estimate paint gallons from square footage and coverage rate.
Target Margin Calculator
Find the selling price needed to reach a target margin on your entered job costs.
Bid Price Calculator
Calculate bid price from material, labor, overhead, and profit.
Pricing a job? Follow the construction estimating workflow for labor, productivity, equipment rental, and bid pricing.
Find your calculator
122 calculators
Concrete Calculators
Estimate concrete volume, bags, yards, rebar, footings, slabs, and related jobsite quantities.
Material Calculators
Calculate gravel, mulch, topsoil, sand, stone, asphalt, and fill quantities.
Carpentry Calculators
Fast layout math for framing, boards, stairs, spacing, trim, and deck projects.
Roofing Calculators
Estimate roof area, shingles, metal panels, pitch, slope, and roofing material counts.
Drywall & Paint Calculators
Estimate drywall sheets, paint gallons, primer, joint compound, and wall surface areas.
Flooring & Tile Calculators
Calculate tile, flooring, thinset, grout, carpet, vinyl, and waste factors.
Masonry Calculators
Estimate blocks, bricks, pavers, mortar, wall area, and masonry materials.
Construction Conversion Calculators
Convert common jobsite measurements including feet, inches, yards, cubic yards, gallons, pounds, tons, and metric units.
Jobsite Business Calculators
Estimate markup, margin, labor cost, fuel cost, bid price, and material cost.
A little math. Fewer expensive surprises.
Markup vs. margin: the $1,000 job example
See why a 20% markup is not a 20% margin, and calculate the selling price for your target.
From slab dimensions to a concrete order estimate
Walk through a 20 by 12 foot slab: convert inches to feet, calculate cubic yards, and separate waste from supplier rounding.
Flooring estimates: area, waste, and full boxes
Turn room dimensions into an order estimate without confusing square footage, waste allowance, and box coverage.