Standard Serving Size and Alcohol Content
A standard shot of vodka in the United States is 1.5 fluid ounces, which equals approximately 44 milliliters. Two shots therefore total 3 fluid ounces, or about 89 milliliters, and are commonly served neat, on the rocks, or as a base in mixed drinks. The US Dietary Guidelines define a standard drink as containing roughly 14 grams of pure alcohol, and two shots of 80-proof vodka align closely with this benchmark.
The Alcohol and Tobacco Tax and Trade Bureau sets labeling and production rules for spirits in the United States, requiring clear disclosure of alcohol by volume and net contents. Most mainstream vodka brands in the US are bottled at 40% ABV, meaning two shots contain about 0.6 fluid ounces of pure ethanol. For consumers tracking intake, this equates to roughly 14 grams of alcohol per standard drink, a figure used by public health agencies to define moderate consumption.
Calorie and Nutritional Profile
Two shots of standard 80-proof vodka provide approximately 128 calories, all derived from alcohol, with no carbohydrates, protein, or fat. The calorie count is calculated from the 7 calories per gram of alcohol, and the exact figure can vary slightly depending on proof and brand. For example, a 90-proof vodka will yield a higher caloric load per shot than a standard 80-proof product.
Vodka is generally considered a neutral spirit with no added sugars or congeners in its purest form, which is why it is often chosen by consumers monitoring caloric intake from alcoholic beverages. The USDA FoodData Central database lists distilled spirits without added flavoring as having zero macronutrients beyond ethanol, and the calorie density remains consistent across unflavored products from major producers.
Global Brands and Market Context
The global vodka market is dominated by a few large spirits groups, including Diageo, Pernod Ricard, and Beam Suntory, which distribute brands such as Smirnoff, Absolut, and Ketel One. According to industry reports, vodka remains one of the top three distilled spirits categories by volume worldwide, with significant consumption in North America, Europe, and emerging markets in Asia and Latin America.
Regulatory frameworks for spirits vary by jurisdiction, but most major markets require a minimum alcohol content and standardized labeling for vodka. The European Union sets a minimum of 37.5% ABV for vodka, while the US standard is 40% ABV for unflavored products. Consumers can compare prices and alcohol strength across brands using data from retail analytics platforms and spirits industry trackers, which also report on import and export volumes between key producing and consuming countries.