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Alcohol drink size calculator ### Tools - Expandable sidenav button [Worksheets & More](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more "Worksheets & more") - [Alcohol Consumption Tracker](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more/alcohol-consumption-tracker) - [How to Stop Alcohol Cravings](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more/how-stop-alcohol-cravings "Handling urges to drink") - [Building Your Drink Refusal Skills](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more/building-your-drink-refusal-skills "Building your drink refusal skills") - [Recovering If You Slip](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more/recovering-drinking-episode-when-your-goal-quit "Recovering if you slip") - Expandable sidenav button [Calculators](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators "Calculators") - [Cocktail Content Calculator](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/mixed-drink-and-cocktail-content-calculator "Cocktail content calculator") - [Drink Size Calculator](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/alcohol-drink-size-calculator "Drink size calculator ") - [Alcohol Calorie Calculator](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/alcohol-calorie-calculator "Alcohol calorie calculator") - [Alcohol Spending Calculator](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/alcohol-spending-calculator "Alcohol spending calculator") - [Blood Alcohol Concentration Calculator](https://www.alcohol.org/bac-calculator/ "Blood Alcohol Concentration Calculator (opens in a new window)") # Alcohol drink size calculator Do you know how many “[standard drinks](https://rethinkingdrinking.niaaa.nih.gov/how-much-too-much/whats-standard-drink "What's a “standard drink”?")” (also known as alcoholic drink equivalents) are in a: ### 21-Fluid Ounce Ballpark Souvenir Cup of Beer? 1\.8 standard drinks per container ### 40-Fluid Ounce Bottle of Malt Liquor? 4\.7 standard drinks per container ### "Half-Pint" of 80-Proof Distilled Spirits? 4\.5 standard drinks per container ### 25-Fluid Ounce Bottle of Wine? 5 standard drinks per container Chances are, your cup or beverage label won't tell you the answer—but this calculator will. See this drop-down menu for common container sizes and alcohol content for different beverages. Examples: (The alcohol content of different types of beer, other malt beverages, and wine may vary.) What's the alcohol content of the beverage? ([convert proof to alc/vol](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/alcohol-drink-size-calculator#rtd-drawer-1)) U.S. standard drink (or drink equivalent) size (containing 14 g pure alcohol) What's the container size? ([convert to fl. oz.](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators/alcohol-drink-size-calculator#rtd-drawer-2)) if needed) Number of U.S. standard drinks (or drink equivalents) per container #### Convert proof to alc/vol Enter in the proof of the alcohol in the left field to automatically calculate the alc/vol. **proof =** **alc/vol** #### Convert to fluid ounces Enter in the measurement in milliliters in the left field to automatically calculate the amount in fluid ounces. **mL =** **fl. oz.** ### Why is this Information Important? Knowing U.S. standard drink (or alcoholic drink equivalent) sizes and the number of drinks per container can help you make informed decisions about your drinking. ### Can't Find your Beverage on the Menu? To check beverages or container sizes not listed in the drop-down menu, you can enter your own amounts into the calculator. Here’s how: - Find the alcohol content of the beverage. For all distilled spirits and most wine, the container label lists the percent "alcohol by volume" or alc/vol. Many beer and malt liquor labels do not list this information, however. To find it, search online for the beverage bottler or other reliable sources. - Enter the alc/vol in the first column of the calculator. - Enter the container size in the third column of the calculator. The calculator will show you how many standard drinks the container holds. ## You May Also be Interested in … - [Worksheets and drinking tracker cards](https://rethinkingdrinking.niaaa.nih.gov/tools/worksheets-more "Worksheets & More") to privately evaluate your drinking - [Other calculators](https://rethinkingdrinking.niaaa.nih.gov/tools/calculators "Calculators") for beer and wine drink sizes, alcohol calories and spending, and blood alcohol concentration **Disclaimer:** This calculator is for educational purposes only, to show how the number of standard drinks (or alcoholic drink equivalents) and the alcohol content (% alc/vol) of a cocktail can vary depending on the type of spirits and the recipe. Any differences between the data you enter in the calculator and the actual amount in a drink could significantly affect the accuracy of the estimates. Because of this and individual variations in alcohol sensitivity and metabolism, the calculator should not be relied upon to predict blood alcohol level or any other measure. Do not drink if you are under the legal age (21 in the United States), and do not drive or engage in other potentially dangerous activities after drinking. Free publication available in English and Spanish ## [Download](https://www.niaaa.nih.gov/sites/default/files/publications/NIAAA_RethinkingDrinking.pdf) the free 20-page booklet, **“Rethinking Drinking: Alcohol & Your Health”**. Image  [Download](https://www.niaaa.nih.gov/sites/default/files/publications/NIAAA_RethinkingDrinking.pdf) ## **Disponible en Español** [Descargue](https://www.niaaa.nih.gov/sites/default/files/publications/rethinking_drinking_6x9_24pg_book-spanish_v10.pdf) copias gratis del folleto de 20 páginas **‘Piénselo Antes de Beber: El Alcohol y su Salud’**. 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