Report a reproducible error or suggest a useful improvement without sending unnecessary personal information.
Email info@calculatrice.com with The-Calculator.com in the subject. Include the page URL, calculator mode, units and a simple example that reproduces the issue. Describe the expected result and why you believe it differs.
Use invented names and rounded financial amounts where possible. Do not send identity documents, tax returns, medical records or account credentials. The editor does not need them to reproduce an arithmetic error.
Explain the task you wanted to complete and which input or result was missing. For a country-specific rule, identify the jurisdiction and link to the relevant official source. A request is more actionable when it includes a concrete example.
This address handles site feedback and editorial matters. It is not an emergency contact or a source of personal medical, legal or financial advice. No response time or individual professional consultation is promised.
English edition: 16 September 2026.