Blood Alcohol Content (BAC) & Sober Time Estimator

Estimate current Blood Alcohol Concentration (BAC %) and hours until sober using the Widmark formula.

  • 100% free
  • Private in browser
  • No signup
  • No watermarks
Current Blood Alcohol Content (BAC %)
0.046
Hours to Reach 0.00% Zero BAC
3
Legal Driving Limit
Legal (Under 0.08%)

Rate this tool

Be the first to rate — helps others and improves this page.

About Blood Alcohol Content (BAC) & Sober Time Estimator

Estimate current Blood Alcohol Concentration (BAC %) and hours until sober using the Widmark formula.

How to use Blood Alcohol Content (BAC) & Sober Time Estimator

  1. Enter your required input values into the fields.
  2. View the automatically calculated results in real time.

Key features

  • Instant client-side calculation
  • Real-time updates without page reloads
  • Private and secure: zero data leaves your browser

Frequently asked questions

Is this calculation free and private?
Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.