Blood Alcohol Content Calculator
Estimate your blood alcohol content quickly with our free online calculator, suitable for individuals, health professionals, and educational purposes.

Check It Yourself
About This Tool
This Blood Alcohol Content (BAC) calculator provides a quick, reliable estimation of your BAC based on alcohol intake, body weight, gender, and elapsed time. Designed for individuals, health professionals, and safety authorities, it helps assess impairment levels accurately without complex formulas. The tool employs standard BAC calculation formulas, considering gender differences and alcohol metabolism rates, to give real-time results as users input their data.
Whether you are planning a safe drive, learning about alcohol effects, or conducting health assessments, this calculator offers a straightforward interface with clear, instant results. Users can input the amount of alcohol consumed in milliliters, specify the number of standard drinks, and provide their body weight and gender. Optional elapsed time since drinking allows for more precise estimates. Results display the estimated BAC percentage, along with safety zones and legal limits, to inform responsible decisions.
Key features include real-time updates, shareable results, and a responsive layout accessible on both mobile and desktop devices. The tool emphasizes accuracy, ease of use, and accessibility, making it suitable for diverse users, including students, healthcare providers, and law enforcement officers. By supporting multiple languages and offering additional features like history and export options, this BAC calculator aims to promote safety awareness and responsible alcohol consumption across regions.
How to Use
1. Enter the amount of alcohol consumed in milliliters.
2. Input the number of standard drinks you've had.
3. Provide your body weight in kilograms.
4. Select your gender.
5. (Optional) Enter hours since drinking started.
6. View your estimated BAC instantly displayed below.

FAQs/Additional Resources
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Can I share or save my BAC results?
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