Contact Us

Have questions, feedback, or found a bug? We'd love to hear from you. Choose the appropriate channel below based on your inquiry.

General Inquiries

For general questions about EtG Calculator, partnerships, or business inquiries.

Have ideas for new features or ways we can improve? We value your input and use it to make our calculator better.

Found something that doesn't work correctly? Please include details about your browser, device, and the steps to reproduce the issue.

Questions about our privacy policy, terms of service, or other legal matters.

You might find your answer in our existing resources:

Common questions about EtG testing and our calculator

Step-by-step guide to understanding EtG calculations

Tips for understanding EtG tests and detection windows

Understanding the differences between test types

We typically respond to emails within 1-2 business days. Thank you for your patience.