Get in Touch

Have a question about our bill splitting calculator? Found a bug? Have a suggestion for a new feature? Want to share feedback on a blog post? We are always happy to hear from our users.

The quickest way to reach us is by email at [email protected]. We do our best to respond to all messages within 48 hours.

Quick tip: For the fastest response, please include a clear subject line describing your question or issue. If you are reporting a bug, let us know which device and browser you are using.

Send Us a Message

What We Can Help With

Frequently Asked Questions

Do I need an account to use the calculator?
No. The N-Bang calculator is completely free to use with no sign-up required.

Is my data stored when I use the calculator?
No. All calculations are performed in your browser. We never collect, transmit, or store your bill data. See our Privacy Policy for full details.

Can I use the calculator on my phone?
Yes. Nbbang.org is fully responsive and works on smartphones, tablets, and desktop computers.

How do I report an incorrect calculation?
Please email us at [email protected] with the numbers you entered and the result you received. We will investigate and fix any issues promptly.