Contact Calculators Cloud

If you found an error in a calculator, tell us which one, what inputs you used, and what result you expected. We will check the formula, fix it if it is wrong, and update the page. Most formula errors get fixed within 48 hours.

If a calculator you need is missing, tell us what it does and which category it belongs in. We build frequently requested tools first.

If something on the site is broken, unclear, or just frustrating, that is useful feedback too.

Email: support@calculator-s.cloud

Prefer email? Send directly. Include the calculator name and a brief description of the issue. No need to format it formally — a short message is fine.

For calculator errors: we verify the formula against the source reference, correct it if needed, update the calculator page, and reply confirming what changed.

For missing calculator requests: we add it to the build queue. High-request tools get prioritized. We do not confirm timelines, but we do track requests.

For technical issues: we try to reproduce the issue, fix it, and reply. Browser and device info helps if you can include it.

For everything else: we reply when we have something useful to say.

• Looking to contribute content? See the Write for Us page.
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• Want to understand how calculators work? Every calculator page has a “How it works” section with the formula and a worked example.
• Want to license calculators for your site? Visit Order calculators.