Contact

Say hello.

Got a new calculator idea? A bug? A correction? A compliment? All welcome.

Get in touch

We're setting up the contact inbox. In the meantime, please open a discussion on our GitHub repository.

A direct email address will be posted here shortly. We read everything.

Bugs: the page you were on, the browser you used, and what went wrong.
Ideas: a one-line description of the calculator you'd want to see.
Corrections: the page and the specific number or claim you think is off, with a source if you have one.