A standard 1.5-ounce shot of 80-proof vodka contains about 97 calories. That number comes entirely from alcohol itself, since plain vodka has zero carbs, zero sugar, zero fat, and zero protein. The calorie count climbs with higher proof varieties: roughly 110 calories for 90-proof and 124 calories for 100-proof.
Why Proof Changes the Calorie Count
Alcohol contains about 7 calories per gram, putting it between carbohydrates (4 calories per gram) and fat (9 calories per gram). Since “proof” is simply double the alcohol percentage, higher-proof vodka packs more pure alcohol into the same 1.5-ounce pour. An 80-proof bottle is 40% alcohol. A 100-proof bottle is 50% alcohol, which is why it delivers nearly 30% more calories per shot despite tasting and looking identical.
A standard drink in the United States is defined by the CDC as any beverage containing 0.6 ounces (14 grams) of pure alcohol. That’s exactly what you get in a 1.5-ounce shot of 80-proof vodka. If you’re pouring at home, most shot glasses hold between 1 and 2 ounces, so your actual pour may differ from the standard serving size.
Flavored Vodka Isn’t Always Higher
Flavored vodkas are a mixed bag. Many are surprisingly close to plain vodka in calories, and some come in lower because they have a slightly reduced alcohol content. Smirnoff Citrus, for instance, has about 87 calories per shot. Ciroc Coconut comes in at 94. Voli Vanilla Espresso sits at 81 calories per serving, and SkinnyGirl’s flavored line advertises about 76 calories per shot.
The outliers are novelty flavors that add real sugar. Bacon-flavored vodka runs about 105 calories per shot. The general rule: if the label lists added sugars or if the vodka tastes noticeably sweet, expect extra calories. Check the nutrition label when one is available, since flavored spirits aren’t required to list nutrition facts the way food is.
How Mixers Multiply the Numbers
A shot of vodka on its own is relatively modest at 97 calories. The real calorie surge comes from what you mix it with. A vodka tonic (7 ounces) runs about 189 calories because tonic water contains sugar, nearly doubling the calorie load compared to the vodka alone. A Cosmopolitan hits 146 calories in just 2.75 ounces. A Bloody Mary comes to around 120. And a White Russian, made with cream and coffee liqueur, reaches 568 calories in a single 8-ounce glass.
Vodka with plain soda water and a squeeze of lime is the lowest-calorie mixed option, adding essentially zero calories beyond the vodka itself. If you’re choosing between tonic and soda water, that single swap saves you roughly 90 calories per drink.
Why Alcohol Calories Hit Differently
The 97 calories in a shot of vodka are often called “empty calories,” and the label fits. Your muscles can’t use alcohol for energy the way they use carbohydrates or fat. Alcohol calories don’t convert to glycogen, the stored fuel your body draws on during physical activity, so they contribute nothing useful to your energy supply.
What makes alcohol calories particularly tricky for weight management is how your body prioritizes processing them. When you drink, your liver shifts its focus to breaking down ethanol first. This process changes the chemical balance in liver cells in a way that actively slows fat burning and encourages fat storage. Essentially, your body puts fat metabolism on pause until it finishes dealing with the alcohol. That means the calories from any food you eat alongside your drinks are more likely to be stored as fat than they normally would be.
This doesn’t mean a single shot of vodka will derail anything. But it helps explain why regular drinking can stall weight loss even when the calorie math seems to add up on paper. Two shots of vodka on a Friday night add about 194 calories, comparable to a small bag of chips. Over a week or a month, though, those numbers accumulate, and the metabolic slowdown compounds the effect beyond what the raw calorie count suggests.
Quick Calorie Comparison by Spirit
If you’re wondering how vodka stacks up against other liquors: it doesn’t really differ. All unflavored 80-proof spirits (gin, rum, tequila, whiskey) land in the same 96 to 100 calorie range per 1.5-ounce shot, because the calories come from the alcohol content, not the base ingredient. Choosing vodka over whiskey or vice versa won’t save you calories as long as the proof is the same. The differences only emerge when you factor in mixers, flavoring, or proof.