Blood Alcohol Calculator

A BAC calculator can be used to estimate your blood alcohol level after a given number of drinks.

One of the biggest problems with drunk driving laws is that you don’t always feel drunk after having a couple of drinks. It’s common for people to get behind the wheel feeling safe to drive, only to be pulled over and find out they are over the legal limit. It’s your blood alcohol concentration (BAC), not how you feel, that determines whether you are driving drunk.

That’s why it can be useful to use a BAC calculator. Since most of us don’t carry breathalyzers with us, a BAC calculator can serve as a handy way to “guesstimate” your BAC. You can use the calculator in advance to see how many drinks it takes to get you to the legal limit. The legal limit for most California drivers is .08%.

We offer this free BAC calculator, provided by, with a few caveats:

  • The BAC calculator is only approximate. Many factors can influence your BAC, including whether you have food in your stomach.
  • Err on the conservative side. If a friend made you a mixed drink, did it have one standard shot in it, or two? Many people pour heavy.
  • The only truly safe BAC is 0.0%.

Remember: in California, you can be convicted of DUI even if you were under the legal limit, if the court believes that you were impaired.

Have you been charged with DUI? We can connect you with an experienced Los Angeles DUI lawyer and get you a FREE consultation. Fill out the form to the right or call (310) 896-2724 and get your free consultation today.

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