YourToolsHub
Privacy PolicyTerms & ConditionsAbout UsDisclaimerAccuracy & Methodology
HomeCalculatorsConvertersCompressorsToolsBlogsContact Us
YourToolsHub

One hub for everyday tools. Empowering professionals with powerful calculators, converters, and AI tools.

Navigation

  • Home
  • Calculators
  • Converters
  • Compressors
  • Tools
  • Blogs

Legal & Support

  • Privacy Policy
  • Terms & Conditions
  • About Us
  • Contact Us
  • Disclaimer

© 2025 YourToolsHub. All rights reserved. Made with ❤️ for professionals worldwide.

Calculators
Health Calculators
Addiction Medicine
BAC Calculator

BAC Calculator

Estimate Blood Alcohol Content using the Widmark formula.

Loading...

Found this tool helpful? Share it with your friends!

About BAC Calculator

The BAC Calculator is a precise tool designed to estimate an individual's Blood Alcohol Content (BAC). Utilizing the scientifically recognized Widmark formula, it considers factors like gender, body weight, amount of alcohol consumed, and drinking duration. This calculator serves as an invaluable resource for anyone seeking a better understanding of alcohol's physiological effects and its approximate concentration in their system. It empowers users with an educated estimate, fostering responsible decision-making regarding alcohol consumption and enhancing awareness of personal limits. Intended for informational and educational purposes, it aids in promoting responsible drinking habits.

Next Steps
Addiction Calculator
Assess risk of dependency based on consumption patterns.
Alcohol Unit Calculator
Calculate alcohol units based on volume and strength.
Audit-C Calculator
Short screening for hazardous drinking.
Audit Score Calculator
The full 10-item Alcohol Use Disorders Identification Test.
Caffeine Calculator
Track daily caffeine intake and safety limits.
Home
BAC Calculator (Blood Alcohol Content)
BAC Calculator (Blood Alcohol Content)

Estimate your blood alcohol content based on consumption, body weight, and time elapsed.

Medical Disclaimer
This tool is for educational and screening purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
⚠️ ESTIMATE ONLY
This calculator provides a mathematical estimate based on the Widmark formula. Individual factors like metabolism, food intake, and medications significantly affect actual BAC. Never use this tool to determine if it is safe to drive.
Parameters
Estimated BAC Result
% BAC0.025
Buzz

Effect & Category Breakdown

0.02% - 0.03%

Feeling of relaxation, slight body warmth.

0.05% - 0.08%

Impaired coordination and judgment. Legal limit in many regions.

0.10% - 0.15%

Slurred speech, slow reaction time, loss of balance.

> 0.30%

Potentially fatal / Alcohol poisoning risk.

Calculation uses the Widmark Formula with average gender distribution constants. 1 Standard Drink = 14g of ethanol (e.g. 12 oz beer at 5%, 5 oz wine at 12%, 1.5 oz spirit at 40%).