Concrete volume, slabs, footings, blocks, bricks, pavers and related material quantities. Use the calculators for your own numbers and the guides for formulas, examples and common questions.
Use the tool that matches the exact problem you need to solve.
Estimate cubic yards of concrete for a rectangular slab and add an optional waste allowance.
Estimate concrete masonry units (CMU) needed for a wall from wall dimensions, block face size and waste.
Estimate the number of bricks needed for a wall from wall area, brick dimensions, mortar joint and waste.
Estimate paver count from project area, paver size and waste allowance.
Estimate grout volume from tile size, joint width, joint depth and tiled area.
Convert rectangular dimensions in feet to cubic yards for soil, gravel, concrete and landscaping materials.
Calculate cubic feet and cubic yards from length, width and height measurements.
6 focused guides and worked examples for this calculator cluster.
Compare approximate bag counts for 40 lb, 60 lb and 80 lb premix concrete using planning yields, then verify the manufacturer coverage before purchasing.
Read guide →Concrete & MasonrySee a worked concrete-volume example for a 10-foot by 20-foot slab that is 4 inches thick. See formulas, worked examples and related free calculators.
Read guide →Concrete & MasonryA 12 ft by 12 ft slab at 4 inches thick is about 1.78 cubic yards before waste. See the cubic-foot, cubic-yard and bag calculations.
Read guide →Concrete & MasonryEstimate 80 lb concrete bags from cubic feet or cubic yards. One 80 lb bag is often approximated at 0.60 cubic feet of mixed concrete; verify the product label.
Read guide →Concrete & MasonryLearn how to calculate concrete volume for slabs and rectangular pours, convert cubic feet to cubic yards, and add a practical waste allowance.
Read guide →Concrete & MasonryLearn how to calculate cubic yards of concrete for a rectangular footing using length, width and depth.
Read guide →Concrete volume, slabs, footings, blocks, bricks, pavers and related material quantities. The pages in this cluster are intentionally connected: calculator pages handle the arithmetic, while the guides answer informational searches, show worked examples and explain how to interpret the result.
Use the examples as reference points, then open a calculator and substitute your own values. For decisions involving contracts, taxes, health, payroll rules, construction requirements or other high-stakes details, verify the real-world assumptions with an appropriate authoritative source.
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