Calculate your estimated blood alcohol concentration based on gender, weight, alcohol consumption, and time elapsed. This tool is for educational purposes only and should not be used to determine fitness to drive or operate machinery.
⚠️ WARNING: This calculator provides estimates only. BAC can vary significantly between individuals. Never use this to determine if you're safe to drive. When in doubt, don't drive.
This calculator uses the Widmark formula and provides estimates only. Actual BAC can vary significantly based on many factors including food consumption, medications, health conditions, and individual metabolism.
Never rely on this calculator to determine if you're safe to drive or operate machinery.When in doubt, don't drive. Use designated drivers, public transportation, or rideshare services.
This tool is for educational purposes only and does not constitute medical or legal advice.