Terms of Use

Last updated: July 2026

By using ConcreteCalc, you agree to these terms. If you don’t agree, please don’t use the app.

What ConcreteCalc is

ConcreteCalc is a free, ad-supported calculator that estimates concrete volume and the number of bags needed for slabs, footings, columns and similar jobs.

Estimates only — please read

ConcreteCalc is provided "as is", without warranties of any kind. Its results are simplified planning estimates: they cannot account for every real-world factor such as ground conditions, waste, spillage, mix variations or local building rules. Always double-check quantities with your supplier and, for any structural work, rely on a qualified professional — not on this app. To the maximum extent permitted by law, we are not liable for over- or under-ordering, project issues or any resulting loss.

Acceptable use

Don’t misuse the app, attempt to break or reverse-engineer it, or use it unlawfully.

Changes

We may update these terms; continued use after a change means you accept the updated terms.