DO NOT DRIVE BASED ON THESE RESULTS.. This BAC calculator provides an estimate only. By using this calculator you accept full legal responsibility for your actions and release this site from all liability.

The most accurate BAC calculator online

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Breathalyzers Know exactly how drunk you are

BAC Effects Chart
BACEffects
0.00-0.04%• Relaxation and warmth
0.04-0.08%• Euphoria and confidence
• Minor impairment of judgement, speech, reaction time, memory, and balance
0.08-0.12%• Driving is illegal
• Noticeable impairment of judgement, speech, reaction time, memory, and balance
0.12-0.26%• Confusion, accidents, and "blackouts" (memory loss)
• Obvious impairment of judgement, speech, reaction time, memory, and balance
0.26%+• Acute alcohol poisoning
• Hard to wake up, slow breathing, and loss of consciousness
• Seek medical attention immediately
OtherDepending on how fast you drink and your tolerance:
• Dizziness/nausea/vomiting
• Unstable emotions (anger, depression, and/or unease)
My liver hates me



Espresso Martini BAC Calculator

An Espresso Martini is about 3.5 oz (104 ml) at roughly 20% ABV — a little over one standard drink, plus a caffeine kick that can mask how much you have had. Enter your weight, sex, and when you started to estimate your BAC. The Espresso Martini is already filled in above.