18 CALCULATORS · CONSTRUCTION

Materials &
project math.

From the first dig to the final coat of paint — quick, free estimates for the materials, loads, and layouts you'll actually order. Formulas reviewed by licensed P.E.s.

✓ Waste factors built in ✓ Metric & imperial ✓ Updated quarterly
Concrete Calculator Popular
Estimate the cubic yards, bags, and cost of concrete for slabs, footings, columns, and walls. Includes a 10% waste factor and side-by-side comparison of ready-mix versus bag pricing.
Concrete Slab Calculator
Estimate the concrete volume, rebar grid layout, bar count, weight, and total cost for a reinforced concrete slab. Includes a 10% waste factor for concrete.
Mulch Calculator
Estimate the cubic yards and bags of mulch needed for your landscaping project. Compare bulk delivery versus bagged pricing with a 10% waste factor.
Asphalt Calculator
Estimate the tons of hot-mix asphalt needed for your paving project. Uses standard density of 145 lb/ft³ with a 10% waste factor.
Board Feet Calculator
Calculate the board footage of lumber for your woodworking or construction project. Enter dimensions and quantity to estimate volume and cost.
Flooring Calculator Popular
Estimate the square footage, number of boxes, and cost of flooring for any room. Includes a configurable waste factor for cuts and fitting.
Gravel Calculator
Estimate the cubic yards and tons of gravel needed for your project. Converts volume to weight using standard gravel density with a 10% waste factor.
Deck Cost Calculator
Estimate material, labor, and total cost for your new deck. Compare pressure-treated, cedar, and composite decking with optional railing.
Fence Cost Calculator
Estimate the number of posts, panels, and total cost for your fence project. Compare wood, vinyl, chain-link, and aluminum options with gate pricing.
Paint Calculator Popular
Estimate the gallons of paint needed for your room. Deducts door and window openings and accounts for multiple coats at 400 sq ft per gallon coverage.
Drywall Calculator
Estimate the number of drywall sheets, joint compound, tape, and screws needed for your project. Covers walls and ceiling with full supply list and cost.
Insulation Calculator
Estimate the rolls, bags, or kits of insulation needed for your project. Compare batt, blown-in, and spray foam options across R-values with cost estimates.
Tile Calculator
Estimate the number of tiles, bags of grout, and total cost for your tiling project. Includes grout line allowance and a 15% waste factor for cuts and breakage.
Staircase Calculator
Calculate the number of steps, rise and run per step, stringer length, and IRC code compliance for your staircase. Enter total rise and preferred tread depth.
Roof Replacement Calculator
Estimate the roofing squares, shingle bundles, and total cost for your roof replacement. Adjusts for roof pitch and compares asphalt, metal, tile, and slate options.
Rebar Calculator
Estimate the number of rebar bars, total linear feet, weight, and cost for a reinforced concrete slab. Supports #3 through #8 bar sizes at any spacing.
Gutter Calculator
Estimate the linear feet of gutters, number of downspouts, and total cost for your home. Compare aluminum, vinyl, steel, and copper with material and labor breakdowns.
Paving Calculator
Estimate the number of pavers, tons of base gravel, bedding sand, and total cost for your paving project. Includes a 10% waste factor for cuts and breakage.