Contact LoanMath

Questions, corrections or feedback? Email the LoanMath team — free loan calculators that run in your browser.

Real humans read this inbox — corrections are handled fast

Questions, suggestions or spotted an error? We would like to hear from you.

We aim to reply within a few business days. For the fastest help, include the calculator page you were using and the numbers that produced the unexpected result, so we can reproduce it locally.

If you found a mistake in a formula, an example or a table on this site, please tell us — corrections are handled promptly and noted in the page. That is the about page policy we hold ourselves to.

All calculations run on your device, so we never see the figures you enter; there is no need to redact them before writing in.

Feedback about a specific tool (a confusing label, a missing field, a suggestion for a new calculator) is just as welcome as bug reports. The most useful messages name the page and describe the expected result, so the report can be checked against the formula on that page.