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Found a bug, a wrong rate, or a calculator you wish existed? We read everything. Email us at hello@truecalculator.co.

If you are reporting a wrong result, please include the numbers you entered and what you expected, so we can reproduce and fix it quickly.

For business enquiries, licensing or backlink suggestions, use the same address — just say what you need in the subject line.

You can also reach us for any of the calculators on the homepage.