Concrete calculators

All calculators

• All-in-one concrete calculator

  One tool for slabs, footings, columns, driveways and stairs. Start here if you are not sure which calculator you need.

  You enter the shape and its measurements.

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• Concrete slab calculator

  Patios, shed bases, garage floors, sidewalks and pads. Any flat rectangular pour.

  You enter length, width and thickness.

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• Concrete bag calculator

  How many bags of mix to buy, for every bag size at once, using manufacturer yields.

  You enter length, width and thickness.

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• Concrete cost calculator

  Bags versus ready-mix at your local prices, with delivery and short-load fees.

  You enter cubic yards or dimensions, and prices.

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• Concrete driveway calculator

  Driveways and parking pads, with thickness guidance for cars and trucks and a cost section.

  You enter length, width and thickness.

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• Concrete stairs calculator

  Solid poured steps for a porch, stoop or back door, with an optional top landing.

  You enter steps, rise, run and width.

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• Concrete footing calculator

  Strip footings under walls and foundations, and pad footings under posts.

  You enter total length, width and depth.

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• Concrete column and post hole calculator

  Fence posts, deck piers, Sonotube forms and round columns.

  You enter diameter, depth and how many.

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• Concrete yardage calculator

  Convert feet and inches to cubic yards, with a table of common slab sizes.

  You enter length, width and thickness.

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• Gravel calculator

  Cubic yards and tons of crushed stone for the base under a slab or driveway.

  You enter length, width, depth and your supplier’s weight.

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