Contact

Compound Interest Calculator is run by Pond Software. The fastest way to reach us is email:

We're glad to hear about:

A calculator returning a number that looks wrong, or a typo in one of the explanations.
A scenario or calculator you wish existed but couldn't find.
Corrections to any figure, formula, or assumption on the site.
Anything about privacy, affiliate links, or these pages.

We read every message. This is a small independent project, so a reply may take a few days, but bug reports and factual corrections get priority.

Looking for something specific? The about page explains who runs the site and how the numbers are chosen, and the privacy policy covers how data is handled.