Careers

Last updated: October 5, 2026

Open positions

There are no open positions at billycalc right now. If that changes, we will list them on this page.

Ways to help

billycalc is an independent project: a free website with thousands of calculators and unit converters in 8 languages, with no registration and no ads. Feedback from visitors helps make it more accurate. We would be glad to hear from you if you are:

a native speaker of English, Spanish, Portuguese, French, German, Italian or Indonesian and would like to review our translations and suggest more natural wording;
a specialist in finance, tax, medicine, construction, engineering or another field and can review our formulas and calculation methods;
someone who found an error — tell us which calculator, the numbers you entered and the result you expected.

What to include in your message

which language you speak natively or which field you work in;
links to the billycalc pages you are writing about;
for a translation or formula issue: what the page says now and what you suggest instead, ideally with a source.

How to get in touch

Write to [email protected] with the subject "Collaboration" and a few words about yourself and how you would like to help, or use the contact form. We usually reply within a few working days. We handle the information you send us as described in the Privacy Policy.