DUI Law: What Constitutes a Serving of Alcohol? Has a Bad Situation Upended Your Life? Don't Face it Alone. 

DUI Law: What Constitutes a Serving of Alcohol?

When it comes to alcohol, not all drinks are created equal. I am frequently contacted by clients with DUI Law questions. Often, my clients initially report only having “a couple of drinks.” However, after further conversation, they inform me that the drinks were shots of tequila served in large rocks glasses! When it comes to drinks, it’s all about the strength of the alcohol, and the size of the serving.

I mention this not to pass judgment, but just as a reminder that the type of alcohol that you consume, as well as the serving size, has a big impact on your blood alcohol level.

“One drink” is considered:

  • a 1.5 ounce shot of 80-proof liquor (this is still true if it is mixed with non-alcoholic drinks such as juice or soda),
  • a 4-5 ounce glass of wine, or
  • 12 ounces of 5% beer.

drink amounts

If you consume larger or stronger drinks, your blood alcohol level will rise faster. In addition, drinking on an empty stomach as well as while under the influence of prescription medications or illegal drugs you can cause you to become impaired, even at a lower blood alcohol level. Under California DUI Law, you can be charged with DUI based on impairment by drugs, even if your blood alcohol level is under 0.08, (the legal limit for driving).

If you have been drinking it is always safer not to drive. If you do drive and get pulled over, you are going to find yourself in a tough spot. Hopefully, you will never find yourself in such a situation, but if you do, here are a few articles on DUI Law that can help you through the situation:

Justin Bieber DUI Arrest – What Can We Learn?

DUI Lawyers in California: What Are the Basics?

How Many Drinks Before it is Illegal to Drive in California?


Common Questions

  • National Geographic
  • Bar Association of San Francisco
  • Berkeley Law
  • Duke Law
  • Lawyerist
  • Lawyernomics
  • Cision
  • Best of SF Winner
  • The National Trial Lawyers
  • 2020 Northern California Rising Stars Super Lawyer Award
  • 2019 Northern California Rising Stars Super Lawyer Award
  • 2018 Northern California Rising Stars Super Lawyer Award
  • 2017 Northern California Rising Stars Super Lawyer Award
  • Elite Lawyer for 2020

Each Year, We Protect Hundreds of Clients' Futures

Explore Our Practice Areas & See How We Can Help You

More Than 150 5-Star Reviews

See What Our Clients Are Saying About Us
    Best DUI lawyers in Los Angeles.

    “I love Jason. He helped me figure out what to do in a difficult situation. He’s the best with a cherry on top. Seriously, these guys rock.”

    - Staci M.
    The best DUI attorney in San Francisco!

    “Jason has more trial experience than anyone I have ever met and has more experience than anybody in the courthouse and seems to know everyone there. My outcome was incredibly positive! I couldn't ask for a better attorney.”

    - Subhi B.
    Super impressed with Jason's team and wholeheartedly recommend his firm.

    “Very, very easy to work with, and a seamless experience on a routine traffic violation. All electronic, easy communication, and consistent updates during the process.”

    - Mike G.
    Definitely hire Jason.

    “All charges were dropped. And the process was simple. I didn’t have to file paperwork, go to the courthouse, or deal with anything. Jason and his staff managed the whole affair. I’m so grateful!”

    - Rebecca B.
    Best decision I have ever made!

    “Jason helped me with my case in a professional and proficient manner. I will definitely come to Jason in the future for any upcoming issues I may have.”

    - Sara P.

What Sets Us Apart?

  • Personal Representation

    You work directly with your attorney every step of the way.

  • Virtual Services

    We utilize technology so you don't need to come into the office and in most cases, court.

  • Connected to the Local Community

    We have built close professional relationships with local judges and district attorneys and are deeply involved in the community.

  • Quick Response

    We get great results, and we get them fast!

Has a Bad Situation Upended Your Life?

Don’t Face it Alone.

How Can We Help You?

You can contact us using this form day or night, 24 hours a day, 7 days a week, 365 days a year. You will hear back from one of our attorneys the same day or next day.
  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.