Calculators/Concrete
Concrete Calculators
Volume, bag counts, rebar and cost for slabs, footings, columns, driveways and stairs.
Concrete Slab CalculatorCubic yards and bag counts for any rectangular slab.Concrete Bag CalculatorHow many 40, 60 or 80 lb bags of concrete do you need?Concrete Driveway CalculatorConcrete volume and area for a driveway pour.Concrete Cost CalculatorEstimate what your concrete will actually cost.Concrete Footing CalculatorVolume for strip footings and foundation trenches.Concrete Column CalculatorConcrete for round columns, piers and post holes.Concrete Stairs CalculatorConcrete volume for a flight of poured steps.Rebar CalculatorRebar quantity and total length for a slab grid.Concrete Pad CalculatorConcrete for shed, HVAC and hot tub pads.
Concrete is measured in feet and inches but ordered by the cubic yard, and bagged concrete is sold by weight but used by volume. These calculators handle both conversions and add a waste allowance, because running short mid-pour leaves a cold joint you cannot undo.