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Spotted a wrong rate, found a bug, or want a tool we don't have yet? Send us a message — we read every one.
What to include
- Reporting an error: the tool name, the numbers you entered and the result you expected.
- Suggesting a tool: what you need to calculate and who it's for — popular requests get built first.
- Business enquiries: partnerships, advertising or embedding a tool on your site.
We usually reply within 2 business days. Before writing about a tax or legal result, please read our Disclaimer — we can fix calculator errors but can't give personal tax or legal advice.