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Know exactly how much to buy.

Free calculators for concrete, block, gravel, soil, lumber and more. Bags, cubic yards and tons, with a cost estimate, on any phone.

Open the Concrete Calculator

26 calculators

Concrete

Concrete CalculatorCubic yards and 40, 60 or 80 lb bags for slabs, footings, posts and steps. Concrete Block CalculatorBlocks, mortar bags and core fill for any block wall, with cost. Concrete Cost CalculatorReady-mix vs bagged concrete: total cost, short-load fees and which is cheaper. Rebar CalculatorRebar grid for a slab: bars, linear feet, 20 ft sticks and weight.

Landscaping

Gravel CalculatorTons, cubic yards and bags of gravel for a driveway, path or patio. Topsoil CalculatorCubic yards, tons and bags of topsoil for beds, lawns and grading. Cubic Yard CalculatorTurn feet, inches or meters into cubic yards, cubic feet, m³ and tons. Mulch CalculatorCubic yards or bags of mulch for any bed, at the depth you want. Sand CalculatorTons, cubic yards and 50 lb bags of sand for pavers, sandboxes and more. Sod CalculatorSquare feet, pallets and pieces of sod for a new lawn, with cost. Landscape Rock CalculatorTons, cubic yards and bags of river rock or decorative stone for beds.

Hardscaping

Asphalt CalculatorTons of hot-mix asphalt for a driveway or patch, with cost. Paver CalculatorPavers, base gravel, bedding sand and edging for a patio or driveway. Retaining Wall CalculatorWall blocks, caps, base gravel and drainage stone for a block retaining wall.

Decks & Fences

Board Foot CalculatorBoard feet and cost for any stack of lumber, hardwood or softwood. Fence CalculatorPosts, concrete, rails and pickets for a wood fence, with cost. Deck CalculatorDeck boards, joists and screws or hidden fasteners for any deck size.

Interior

Square Footage CalculatorSquare feet of any room or area, in sq ft, sq yd, m² and acres. Drywall CalculatorDrywall sheets, screws, tape and joint compound for a room, with cost. Flooring CalculatorBoxes of laminate, vinyl or hardwood flooring, plus underlayment and baseboard. Tile CalculatorHow many tiles and boxes for a floor, wall or backsplash, grout joints included. Paint CalculatorGallons of paint for a room's walls and ceiling, with doors, windows and coats. Insulation CalculatorHow many inches of attic insulation to add to reach the recommended R-value.

Roofing

Stair CalculatorRisers, treads, total run and stringer length, checked against the residential code. Roof Pitch CalculatorRoof pitch as X in 12, the angle in degrees, slope percent and roof area. Roofing CalculatorRoofing squares, shingle bundles, nails, underlayment and drip edge.

Why you can trust these numbers

  • Sourced constants. Block counts, mortar and grout yields, densities and bag sizes come from manufacturer data sheets, state transportation departments and industry bodies such as the National Concrete Masonry Association. Each one is listed on its calculator page.
  • Tested formulas. Every calculator is checked against hand-worked test cases before it goes live.
  • Every unit you buy in. Bags, cubic feet, cubic yards and tons, with the extra allowance shown, not hidden.

How we build and test our calculators →