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What Is A Standard Drink?

By Boris MacKey

Published: February 20, 2025

Many people don’t realise what actually qualifies as a “drink.”

The amount of liquid in your glass, bottle, or can isn’t always an accurate reflection of the alcohol content.

Various types of beer, wine, and malt liquor contain different levels of alcohol, which can be misleading.

Take light beer, for example—it often has nearly the same alcohol content as regular beer, with about 85% of the alcohol found in a standard beer. To break it down:

  • Regular beer: 5% alcohol
  • Some light beers: 4.2% alcohol

Understanding alcohol content is crucial. In the U.S., a “standard” drink contains approximately 14 grams of pure alcohol. This amount can be found in:

  • 12 ounces of regular beer (about 5% alcohol)
  • 5 ounces of wine (around 12% alcohol)
  • 1.5 ounces of distilled spirits (roughly 40% alcohol)

So how can you determine the alcohol content in your drink?

Although drinks come in different shapes and sizes, the following all count as one standard drink:

standard-drink

While “standard” drink measurements are useful for adhering to health recommendations, they don’t always align with typical serving sizes.

A single mixed drink containing hard liquor, for instance, can range from one to three—or even more—standard drinks, depending on the type of spirits used and the specific recipe.



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By Boris MacKey

Boris is our editor-in-chief at Rehab 4 Addiction. Boris is an advisor with more than 20 years in the field.  His knowledge covers a broad of topics relating to addiction, rehab and recovery. Boris is an advisor and assists in the alcohol detox and rehab process. Boris has been featured on a variety of websites, including the Verywell Mind and Healthline. You can connect with Boris online at LinkedIn or X.com.