Get in Touch
Whether you've found an error in a calculator, have feedback on the site, want to suggest a new tool, or have a general question, the best way to reach us is by email.
We aim to respond to all messages within a few business days. For bug reports, including the specific tool name and the values you entered helps us resolve issues faster.
Common Reasons to Reach Out
Report a calculation error
Suggest a new tool
Privacy or data questions
Advertising inquiries
Partnership requests
General feedback
Before You Email Us
If your question relates to a specific calculator's accuracy, please double check our methodology notes on that tool's page first — most tools explain the exact formula used. If you still believe there's an error, we genuinely want to know, since accuracy is core to what we're trying to do with Calquto.