Concrete & Masonry Calculators

Count bags of concrete for a slab, footings or post holes, decide when ready-mix makes more sense, and count blocks, bricks and mortar for garden walls and other non-structural work.

Checked formulas. Every result is tested against hand calculations and a trade reference.

Working shown. See exactly how each number was worked out.

Honest limits. We say when a job needs a licensed professional.

How we build and check our calculators