Concrete, masonry & paving calculators
Concrete in yards and bags, Portland cement mixes, block and brick counts with mortar, rebar and asphalt tonnage.
- Asphalt calculatorCalculate how many tons of hot-mix asphalt you need for a driveway, path or patch from length, width and compacted thickness, with cost per ton.
- Brick calculatorCalculate how many bricks you need for a wall — modular, standard, queen or king size — plus masonry cement and sand, with openings and waste.
- Cement calculatorMixing your own concrete? Find how many 94 lb bags of Portland cement, plus sand, gravel and water, you need for a slab or pad at 1:2:3 or 1:2:4.
- Concrete block calculatorCalculate how many concrete blocks (8x8x16 CMU) you need for a wall from its length and height, plus bags of mortar mix, with extra for breakage.
- Concrete calculatorWork out how much concrete you need for a slab, footing, wall, column or post holes — in cubic yards and 80, 60 or 40 lb bags, with waste included.
- Concrete slab calculatorEnter your slab's length, width and thickness to get cubic yards of concrete and the number of 80, 60 or 40 lb bags, plus an optional cost estimate.
- Concrete weight calculatorFind how much a concrete slab, pad, footing or column weighs in pounds, tons and kilograms from its size and thickness, for normal or lightweight concrete.
- Paver calculatorFind how many pavers you need for a patio, walkway or driveway, plus tons of gravel base, bedding sand and feet of edge restraint, with extra for cuts.
- Rebar calculatorCalculate how much rebar a concrete slab needs from its size and bar spacing — linear feet, 20 ft bars to buy, weight and ties for #3, #4 or #5 bar.