Blood Alcohol Calculator
The BAC calculator below can assist you in planning out your night to find your “sweet spot”. Enter the length of time you plan to drink, the number of standard drinks you plan to consume, your current weight, and select your birth/biological sex. The tool will also tell you how many hours it will take for your BAC to return to zero.
In the United States, a standard drink contains 0.6 fluid ounces or 14 grams of pure alcohol. One standard drink is equal to 12 fl oz of regular beer = 8-9 fl oz of malt liquor = 5 fl oz of table wine = 1.5 fl oz shot of 80-proof distilled spirits (gin, rum, tequila, vodka, whiskey, etc.)
- Birth/biological sex
- Body weight
- percentage of alcohol in your drink (strength of drink)
- Rate of drinking (how much alcohol you consume over time),
- Food consumed before drinking
- Mixed with any other substances
BAC Calculator
BAC CONTINUUM
BAC .01%-.06%
Feeling it.
How you feel: Relaxed; More confident; Slight euphoria; Feeling tipsy
How you look: Relaxed; More talkative; Happy
.07%-.20%
You think you’re good,
but you’re really not.
How you feel: In control; Unstoppable; “Buzzed”; More emotional; The room is spinning; Groggy, nauseous
How you look: Uncoordinated; Drunk; Out of it; Over-confident; Angry, irrational, jumpy; Sick; Sleepy, can’t keep your head up; Slurring your speech
.21%-.40%
Get Help!
How you feel: Lost; Confused; Disoriented; Sick; Dizzy; Exhausted; Angry
How you look: Uncontrollable; Unintelligible; Unaware; “Wasted,” “Gone”; Can’t stand up, can’t walk; Uncooperative; Loss of bladder control; Cold skin; Unresponsive; Puking; Slow breathing
Additional Resources
Cocktail Content Calculator, Drink Size Calculator, Alcohol Calorie Calculator
What exactly is one alcoholic drink?
IMPORTANT NOTE: This page is for informational purposes only. The calculator is based on estimations and cannot fully determine your BAC level. We strongly suggest that if you have any alcohol in your body, do NOT drive or operate machinery.