Fast, free estimates for materials—with the formulas shown so you can check the math.
Concrete & masonry
Concrete Slab Calculator – Free concrete calculator: enter slab length, width and thickness to get cubic yards, cubic feet and the number of 40, 60 or 80 lb bags needed.
Paver & Brick Calculator – Paver calculator for patios and walkways: paver count plus base gravel and bedding sand in cubic yards.
Sand Calculator – Sand calculator for paver bedding, sandboxes and fill: length, width and depth to cubic yards, tons and bags.
Gravel Calculator – Gravel calculator for driveways, paths and patios: get cubic yards and tons from length, width and depth.
Asphalt Calculator – Asphalt calculator: driveway length, width and compacted thickness to cubic yards and tons of hot mix asphalt.
Interior
Room Paint Calculator – Estimate gallons of paint for a room: enter wall dimensions, doors, windows and coats. Uses 350–400 sq ft per gallon coverage.
Drywall Calculator – Drywall calculator: enter room perimeter, wall height and ceiling area to get 4×8 and 4×12 sheet counts plus joint compound and screws.
Wallpaper Calculator – Wallpaper calculator using the strip method: room perimeter, wall height, roll size and pattern repeat to rolls needed.
Flooring Calculator – Flooring calculator for laminate, LVP and hardwood: room size to square footage and boxes, with waste for cuts.
Tile Calculator – Tile calculator for floors and walls: enter area and tile size to get tile count and boxes, with waste for cuts.
Grout Calculator – Grout calculator: tile size, joint width and depth to grout volume and pounds needed for your floor or wall.
Baseboard & Trim Calculator – Baseboard calculator: room perimeter minus doorways to linear feet of trim and number of 8, 12 or 16 ft pieces.
Insulation Calculator – Insulation calculator: area and target R-value to required thickness and number of bags or batts packages.
Stair Calculator – Stair calculator: total rise to number of steps, riser height, total run and stringer length, checked against IRC limits.
Outdoor & yard
Mulch Calculator – Calculate how much mulch you need: bed area and depth to cubic yards and 2 or 3 cubic foot bags.
Topsoil Calculator – Topsoil calculator: area and depth to cubic yards, approximate tons and bags of topsoil for lawns and garden beds.
Sod & Grass Seed Calculator – Lawn calculator: area to sod pieces and pallets, or pounds of grass seed at your seeding rate.
Fence Calculator – Wood fence calculator: fence length and post spacing to posts, rails, pickets and concrete bags for posts.
Deck Board Calculator – Deck board calculator: deck length and width, board width and gap to rows, linear feet, board count and deck screws.
Roofing Shingle Calculator – Roof shingle calculator: footprint area and roof pitch to roof area, roofing squares and bundles of shingles.