Contact Us
We're a small team focused on building accurate, free financial tools. We welcome bug reports, accuracy corrections, and thoughtful feedback.
What to include in your email
Calculator error or inaccuracy
If you believe a calculator is producing incorrect results, please include the calculator name, the inputs you used, the result you got, and the result you expected.
Feature request or new calculator
Have a financial calculation you'd like to see? Describe the calculation, what inputs it would need, and what problem it would solve.
General question or feedback
Questions about how a specific formula works, feedback on the site experience, or anything else — we read every email.
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