Celtic Kane

Determine Your Tolerance Results
  • Your estimated BAC is not available yet
  • Your estimated time to drive is not available yet
  • Your estimated time until sober is not available yet
Metabolic rate:
Elapsed time: hrs min
Determined Total Consumed Alcohol
Percent alcohol: %
Total servings:

Alcohol History
    [no alcohol added]

    Purchase a Breathalyzer

    This online BAC calculator is good for estimating your BAC level, but your actual BAC will vary depending on a host of different factors, such as your hydration status, recent meals, fluid intake, kidney function, and much more. If you’re interested in buying a breathalyzer to get a more accurate estimation, I would suggest one of the three models listed below:

    Good Quality High Quality Best Quality

    BAC Chart Values
    0.00 – 0.03% Normal behavior, no impairment
    0.03 – 0.06% Mild euphoria and impairment; decreased inhibitions
    0.06 – 0.10% Buzzed, euphoric, increased impairment
    0.10 – 0.20% Drunk, emotional swings, slurred speech, nausea, loss of reaction time and motor control
    0.20 – 0.30% Confused, nauseated, poor mentation, blackout
    0.30 – 0.40% Possibly unconscious, unarrousable, loss of bladder function, risk of death
    Above 0.40% Unconscious, coma, impaired breathing, risk of death

    Important Notes

    • If you’re typing in a custom percent alcohol, remember that the proof of an alcohol is double the percent (e.g. 80 proof alcohol is 40%)
    • If you’re entering a mixed drink, only count the number of shots you put in (not the drink’s total volume)
    • Everyone is different — BAC calculators are merely an estimate. A breathalyzer or blood test is the only way to have an accurate measurement.
    • This calculator assumes the legal limit for driving is 0.08% and 21 years old. Please note that the legal limit for driving may vary depending on state/country and your age.
    • All calculations are based on the US Department of Transportation.