American Ready Mix

Plan Your ProjectConcrete Calculator

Pouring concrete for a granite entry step footing.

Use our concrete calculators to determine how much concrete you need.

The concrete volume calculations below assume you measured appropriately. For example, if you say your slab is six inches deep, then that is true. If fact, sometimes the slab is six inches deep at the forms, but deeper in the middle of the slab. But, DON'T WORRY. We will most likely have extra concrete on our volumetric mobile mixer. If your calculations are long or short, you only pay for what you use. The calculations below are only as good as your measurements, meaning that we should consider them just estimates.

Or just call us and we will help you figure out how much you need: 866-594-5649.

When calculating concrete amounts, please expect your final concrete useage to vary approximately 10% (+/-) due to excavation etc.

Slab Calculator

Suitable for: driveways, sidewalks, patios or any flat surfaces of concrete. Enter Width and Length in feet, and thickness in inches.
Formula: V = W x L x T.

Tube/Cylinder Calculator

Formula: V = PI x (W/2)^2 x H.

Square Foot Footings

Click here for SquareFoot footings specs.

Retaining Wall Calculator

Suitable for: Retaining walls, footings or any other volume of concrete. Enter Length and Height in feet, and thickness in inches.
Formula: V = L x H x T.

Bigfoot Footings Calculator

Click here for Bigfoot footings specs.