Free Material Calculators

Seventeen fast, mobile-friendly calculators for landscaping, hardscape, and home-improvement projects. Enter your measurements and get the exact quantity to order — in bags, cubic yards, tons, gallons, blocks, boards, sheets, or rolls — with waste and cost built in. No signup.

Flagstone Calculator

How many tons of flagstone for your patio? Coverage by thickness, plus cost.

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French Drain Gravel Calculator

Cubic yards & tons of #57 stone for a French drain trench, plus pipe and fabric.

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Paver Sand Calculator

Bedding sand & paver base in yards or bags for patios, walkways, and driveways.

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Sod Calculator

How many rolls and pallets of sod for your lawn, with waste and cost built in.

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Topsoil Calculator

Cubic yards, tons, or bags of topsoil for beds, lawns, and leveling.

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Mulch Calculator

Bags or cubic yards of mulch at 2", 3", or 4" depth, with bulk-vs-bags math.

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Retaining Wall Calculator

Blocks for your wall, plus base gravel and drainage backfill in tons and yards.

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Gravel Calculator

Cubic yards and tons of crushed stone, #57, or pea gravel for driveways and pads.

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Paint Calculator

Gallons of paint by wall area and number of coats, at ~350 sq ft/gallon.

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Decking Calculator

Deck boards, joists, and screws for your deck, with board gap and waste built in.

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Concrete Calculator

Cubic yards and bags of concrete for slabs, patios, and footings, with bag counts.

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Crushed Stone Calculator

Cubic yards and tons of #57 stone, crusher run, or #411 for driveways and base.

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Sand Calculator

Cubic yards, tons, or 0.5 cu ft bags of sand for beds, boxes, and fill.

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Fill Dirt Calculator

Cubic yards and tons of fill dirt to raise grade, backfill, or level a yard.

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River Rock Calculator

Cubic yards and tons of river rock for beds, borders, and dry creek beds.

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Asphalt Calculator

Tons (and cubic yards) of hot-mix asphalt for driveways, overlays, and pads.

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Drywall Calculator

Sheets of 4×8, 4×10, or 4×12 drywall for your walls and ceilings, with waste.

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How these calculators work

Every tool uses the same approach: measure your area (rectangle, circle, triangle, or L-shape — and you can add multiple areas), choose a depth or thickness, pick the material, and add a waste allowance. The calculator converts everything to the unit you actually order in.

Densities and coverage values follow standard supplier figures: #57 gravel ≈ 1.4 tons/yd³, bedding sand ≈ 1.35 tons/yd³, screened topsoil ≈ 1.2 tons/yd³, hardwood mulch ≈ 0.5 tons/yd³, and 1 cubic yard = 27 cubic feet. Always confirm with your local yard before ordering.