Contact Us
Questions about a calculation, a correction or a suggestion? Send us an email and we will get back to you.
Write to hello@concretecalculator.org. We read every message. Replies usually take a few business days.
Quick help
- If a result looks wrong, send the calculator name, your inputs and the result you expected. A link to the page after you press calculate carries your inputs in the URL.
- For project advice, ask a local contractor or engineer. We cannot assess soil, loads, codes or site conditions.
- To report a mistake in a guide, tell us the page and the sentence.
- See the methodology page for how the numbers are calculated.
Business inquiries
For partnerships, advertising and licensing, use the same address and put “Business” in the subject line.
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