Drinks Per Hour Bac Calculator


Welcome to the Drinks Per Hour BAC Calculator, a tool designed to estimate your Blood Alcohol Content (BAC) based on the amount of alcohol consumed, your body weight, and the hours elapsed since consumption. This calculator is useful for individuals to assess their level of intoxication.


The BAC is calculated using Widmark’s formula: ���=(Alcohol Consumed×5.14Body Weight×0.66)−(0.015×Hours Elapsed)BAC=(Body Weight×0.66Alcohol Consumed×5.14​)−(0.015×Hours Elapsed)

How to Use:

  1. Enter the amount of alcohol consumed (in ounces).
  2. Enter your body weight (in pounds).
  3. Enter the hours elapsed since alcohol consumption.
  4. Click the “Calculate” button to obtain your estimated Blood Alcohol Content.


For example, if you consumed 5 ounces of alcohol, weigh 150 pounds, and it has been 2 hours since consumption, the calculator would estimate your BAC.


  1. Is the BAC result accurate for everyone?
    • Individual factors such as metabolism and tolerance can affect BAC, so consider this as an estimation.
  2. Can I use this calculator for different types of alcoholic beverages?
    • Yes, the calculator considers the total amount of alcohol consumed, regardless of beverage type.
  3. Why is body weight a factor in BAC?
    • Body weight influences the distribution of alcohol in the body, impacting BAC.
  4. Can this calculator determine if I am legally intoxicated?
    • BAC limits for legal intoxication vary by jurisdiction, and this calculator provides an estimate.
  5. Should I rely on this calculator to make decisions about driving?
    • No, use this calculator for informational purposes only. Always prioritize safety and consider other factors.


The Drinks Per Hour BAC Calculator offers a convenient way to estimate your Blood Alcohol Content based on alcohol consumption, body weight, and hours elapsed. Remember that BAC is an approximation, and individual variations may apply. Use this tool responsibly and prioritize safety.

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