Estimate your blood alcohol content and safe driving time
Welcome to BAC Calculator, your trusted resource for understanding blood alcohol concentration and making informed decisions about alcohol consumption and safe driving.
Our mission is to provide accurate, accessible information about blood alcohol content to help individuals make responsible choices. We believe that education and awareness are key to reducing alcohol-related incidents and promoting public safety.
Through our free online calculator and educational resources, we aim to:
The BAC Calculator was developed by a team of health professionals, software engineers, and safety advocates who recognized the need for an accurate, user-friendly tool to help people understand blood alcohol content.
Health Education Specialist
With over 15 years of experience in public health education, Dr. Johnson ensures our content is medically accurate and helpful.
Lead Developer
Michael brings 10+ years of software engineering experience to create an intuitive, reliable calculator.
Legal Consultant
As a former prosecutor specializing in DUI cases, Robert provides insights on legal aspects of alcohol consumption.
The BAC Calculator uses the Widmark formula, which is widely accepted in the scientific community for estimating blood alcohol concentration. Our calculations take into account:
While our calculator provides a scientifically-based estimate, it's important to remember that many factors can influence actual BAC levels, including metabolism, medications, health conditions, and more.
We are committed to promoting safe and responsible alcohol consumption. Our calculator is designed to be educational, not to encourage drinking or to provide a definitive determination of whether someone is safe to drive.
We strongly advise:
We value your feedback and are continuously working to improve our calculator and resources. If you have questions, suggestions, or concerns, please don't hesitate to reach out to us at:
Email: info@bac-calculator.xyz
This section provides important legal information regarding the BAC Calculator, its use, and the legal implications of blood alcohol content in the United States.
In the United States, driving with a BAC of 0.08% or higher is illegal in all states. Penalties for DUI (Driving Under the Influence) vary by state but commonly include:
Additional penalties may include community service, probation, increased insurance rates, and permanent criminal record. Some states have "zero tolerance" laws for drivers under 21, making any detectable amount of alcohol illegal.
The BAC Calculator is provided for informational and educational purposes only. It is not intended to encourage alcohol consumption or to provide a definitive determination of whether someone is safe to drive.
The calculations provided by this tool are estimates based on general formulas and may not reflect your actual blood alcohol concentration. Many factors can affect BAC including:
Never rely on this calculator to determine if you are safe to drive. The only safe approach after consuming alcohol is to arrange for alternative transportation or to wait until you are completely sober.
By using the BAC Calculator, you agree to the following terms:
© 2025 BAC Calculator. All rights reserved. The content, design, and functionality of this website are protected by copyright laws. Unauthorized reproduction or distribution of any material from this site is strictly prohibited.
We value your privacy highly. This Privacy Policy explains how we collect, use, and protect the information you provide when using the BAC Calculator.
We collect the following types of information:
We use the collected information to:
We do not sell or rent your personal information to third parties. We may share information in the following circumstances:
We implement appropriate technical and organizational measures to protect your personal information from unauthorized access, alteration, or destruction.
We use cookies to improve your browsing experience, analyze website traffic, and remember your preferences. You can control cookie usage through your browser settings.
You have the right to:
We may update this Privacy Policy from time to time. Any changes will be posted on this page, and for significant changes, we will notify you through the website.
If you have any questions or concerns about our Privacy Policy, please contact us at:
Email: info@bac-calculator.xyz
Last Updated: June 29, 2025