Terms of Service

Effective Date: December 24, 2025
Last Updated: December 24, 2025

1. Acceptance of Terms

By accessing or using Fast BAC Calculator ("the Service," "our website," or "we"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use our Service.

We reserve the right to modify these Terms at any time. Continued use of the Service after changes constitutes acceptance of the updated Terms.

2. Description of Service

Fast BAC Calculator provides:

• A web-based Blood Alcohol Concentration (BAC) calculator using the Widmark formula
• Educational information about BAC levels and their effects
• AI-powered explanations and standard drink calculations
• Visual charts showing BAC danger levels based on NHTSA and CDC data

The Service is provided "as is" for educational and informational purposes only.

3. Critical Disclaimers and Limitations

4. Factors Affecting Accuracy

The Widmark formula provides estimates but cannot account for all individual variations, including:

• Body Composition: Muscle vs. fat ratio affects alcohol distribution
• Food Consumption: Eating before/during drinking slows absorption
• Medications: Many drugs interact with alcohol metabolism
• Age and Health: Liver function, age, and overall health affect processing
• Alcohol Tolerance: Chronic drinkers may have altered metabolism
• Drink Strength: Actual alcohol content varies by brand and pour
• Drinking Speed: Rapid consumption leads to higher peak BAC

5. User Responsibilities

By using this Service, you agree to:

• Use the calculator for educational purposes only
• Not rely on results for decisions about driving or safety-sensitive activities
• Understand that results are estimates and not medical or legal advice
• Comply with all applicable local, state, and federal laws regarding alcohol consumption
• Not use the Service if you are under the legal drinking age in your jurisdiction
• Provide accurate information (gender, weight, drinks) for best estimates

6. Prohibited Uses

You may NOT use this Service to:

• Determine whether you are legally able to drive
• Circumvent DUI/DWI laws or legal BAC limits
• Provide advice to others regarding their ability to drive
• Submit false or misleading information
• Scrape, copy, or republish our content without permission
• Reverse engineer or attempt to access source code (beyond open-source components)
• Use automated tools to access the Service in ways that could harm performance

7. Intellectual Property

All content on this Service, including text, graphics, logos, calculator algorithms, and software, is the property of Fast BAC Calculator or its licensors and is protected by copyright and intellectual property laws.

You may:

• Use the Service for personal, non-commercial purposes
• Share links to our website

You may NOT:

• Copy, modify, or distribute our content without written permission
• Remove copyright or proprietary notices
• Claim our work as your own

8. Third-Party Services and Links

Our Service uses third-party services including:

• Vercel Analytics: Website analytics
• Google AdSense: Advertising (if enabled)
• AI Providers (Evolink/Google Gemini): AI-powered features

We are not responsible for the content, privacy policies, or practices of third-party websites or services. Links to external sites are provided for convenience only.

9. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

• Accuracy, reliability, or completeness of BAC calculations
• Fitness for a particular purpose
• Non-infringement of third-party rights
• Uninterrupted or error-free operation

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, FAST BAC CALCULATOR, ITS OPERATORS, AFFILIATES, AND PARTNERS SHALL NOT BE LIABLE FOR:

• Direct Damages: Any harm resulting from reliance on BAC calculations
• Indirect Damages: Lost profits, data loss, or business interruption
• Legal Consequences: DUI/DWI arrests, fines, or criminal charges
• Personal Injury: Accidents, injuries, or death resulting from alcohol consumption
• Third-Party Actions: Claims arising from your use of the Service

YOU ASSUME ALL RISK AND RESPONSIBILITY FOR YOUR ACTIONS. THE DECISION TO DRIVE OR OPERATE MACHINERY IS SOLELY YOURS.

11. Indemnification

You agree to indemnify, defend, and hold harmless Fast BAC Calculator and its operators from any claims, damages, liabilities, costs, or expenses (including legal fees) arising from:

• Your use or misuse of the Service
• Violation of these Terms
• Violation of any laws or regulations
• Infringement of third-party rights

12. Age Restrictions

This Service is intended for adults of legal drinking age (21+ in the United States, 18+ in some jurisdictions). By using this Service, you represent that:

• You are of legal drinking age in your jurisdiction
• You will not provide access to minors
• You will comply with all applicable age-related alcohol laws

13. Privacy and Data Collection

Your use of this Service is also governed by our Privacy Policy. Key points:

• Calculator inputs are processed client-side and NOT stored on our servers
• We use cookies for analytics and advertising (with your consent)
• AI conversations may be processed by third-party AI providers

14. Modifications to the Service

We reserve the right to:

• Modify, suspend, or discontinue the Service at any time without notice
• Change BAC calculation algorithms based on updated research
• Update content, features, or user interface
• Implement usage limits or restrictions

15. Governing Law and Dispute Resolution

These Terms shall be governed by the laws of the United States and the State of California, without regard to conflict of law principles.

Any disputes arising from these Terms or your use of the Service shall be resolved through binding arbitration in accordance with the rules of the American Arbitration Association.

16. Severability

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will remain in full force and effect.

17. Contact Information

For questions about these Terms of Service, please contact us:

• Email: legal@fastbaccalculator.com
• Website: https://fastbaccalculator.com

18. Final Reminder

By using this Service, you acknowledge that you have read, understood, and agree to these Terms of Service.