Concrete Calculators

Convert slab, footing, column and wall dimensions into cubic yards and bag counts.

10 free concrete calculators — no sign-up, instant results.

Concrete Bag Calculator

Calculate how many bags of concrete are needed for a given volume.

Multi-purpose concrete volume calculator for slabs, footings, columns, and walls.

Calculate concrete volume for cylindrical columns, piers, and support posts.

Estimate total concrete project costs including materials, labor, waste, and taxes.

Calculate concrete volume and bag requirements for fence posts, deck footings, and pier foundations.

Calculate concrete volume and bag requirements for rectangular slabs, patios, and floor pours.

Calculate concrete volume needed for concrete steps and stairways.

Calculate concrete volume for concrete walls, retaining walls, and foundation walls.

Convert concrete volume from cubic feet to cubic yards for ready-mix concrete ordering.

Calculate linear feet and weight of rebar reinforcement for concrete slabs, walls, and foundations.