Terms of Use

Last updated: 2026. By using this site you agree to these terms.

The service

This site provides a free concrete block calculator for general informational and estimating purposes. Material estimates are approximate planning figures, not engineering advice. Always confirm quantities with your supplier or contractor, and follow local building codes for any structural work.

Acceptable use

Do not misuse the site, attempt to disrupt it, or scrape it aggressively. We may block abusive traffic.

Liability

The site is provided as is, without warranties. To the fullest extent the law allows, we are not liable for decisions you make based on its output.