OhMyCalc

BAC Calculator

Calculate blood alcohol content and time to sober up.

How to Use the BAC Calculator

  1. Enter your body weight in kilograms.
  2. Enter the number of standard drinks you have consumed.
  3. Enter the number of hours since your first drink.
  4. Click Calculate to see your estimated blood alcohol content and time to sober up.

Quick Reference

FromTo
Height (adult M)170–180 cm
Height (adult F)160–170 cm
Weight (adult M)65–85 kg
Weight (adult F)55–70 kg
Resting heart rate60–100 bpm
Normal BP120/80 mmHg

Use Cases

Formula

Calculate blood alcohol content and time to sober up.

Frequently Asked Questions

How to use?
Enter your weight, number of drinks, and hours elapsed since your first drink, then click Calculate.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.