Concrete calculators
Calculators
Choose what you need to calculate. Enter your measurements or the yield, density, or coverage listed for your product.
Concrete quantities
Estimate the concrete for a rectangular slab, wall, footing, or column using its length, width, and thickness.
Round concrete volumeCalculate concrete for a round column or form using its inside diameter and height.
Hollow cylinder volumeCalculate concrete between a round outer form and a round post or opening. Both circles must share the same center and fill height.
Solid concrete stepsCalculate concrete for solid steps with equal tread depths and riser heights, built on a flat base.
Curb & gutter volumeCalculate concrete for a straight curb and gutter with rectangular cross sections.
Tapered slab volumeEstimate concrete for a slab whose thickness changes at a constant rate from one end to the other.
Thickened slab edgesCalculate a rectangular slab with thicker edges. Enter the outside dimensions, inner dimensions, and thickness of each section.
Belled footing volumeCalculate concrete for a round shaft and the tapered, wider base below it.
Ribbed slab volumeCalculate concrete for a slab with ribs beneath it. The ribs run the full length or width and cross at right angles.
Materials & supply
Calculate how many bags of concrete mix you need using your required volume and the mixed yield per bag.
Concrete recipe quantitiesCalculate ingredient weights for a larger or smaller batch using an existing recipe and its finished concrete yield.
Concrete and aggregate weightConvert concrete or aggregate volume to weight using the density of your material.
Site preparation
Estimate full mesh sheets needed to cover a rectangular area, including the overlap required by your project.
Wall formwork areaCalculate the formwork area for both sides and both ends of a rectangular concrete wall.
Rectangle diagonalCalculate the corner-to-corner distance of a rectangle from its length and width.
Concrete quantity tools