Contact

How to reach us about a bug, a wrong rate or a missing calculator.

Use this form to report a bug, an outdated rate, or to request a calculator. It opens your own email app with the message prefilled; there is no server receiving anything.

Email address will be published when the domain goes live. Until then the form is disabled.

What to include

• The calculator and a share link with your inputs (the Share button copies one).
• The result you expected and where it comes from.
• Your browser and device if it is a display problem.

Rate corrections with a link to the official source are fixed fastest.