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Send a question about a calculator, a suggestion for a new tool, or a partnership inquiry. We read every message.
What to Include
- - The specific calculator or page you are referring to.
- - A description of the issue or suggestion.
- - The numbers you entered and the result you expected, for bug reports.
Messages are read by the site operator. No response time is guaranteed, and this inbox is not a support channel for a bank, lender, employer, or clinician. Reports that a published calculation is wrong are prioritised and fixed in the calculator and its worked example together.