A standard 1.5-ounce shot of 80-proof rum contains about 97 calories. That number comes entirely from alcohol itself, since plain rum has zero sugar, zero carbs, and zero fat. The calorie count climbs with higher proof: a 1.5-ounce pour of 94-proof rum jumps to 116 calories.
Why Proof Is the Only Number That Matters
Every gram of pure alcohol contains 7 calories, which puts it between carbohydrates (4 calories per gram) and fat (9 calories per gram). Since distilled rum contains nothing but alcohol and water, the proof on the label is essentially a calorie label too. Higher proof means more alcohol per ounce, which means more calories per ounce.
At 80 proof (40% alcohol), you’re looking at roughly 97 calories per 1.5-ounce shot. At 94 proof (47% alcohol), that same pour hits 116 calories. Overproof rums in the 150-proof range can pack close to 190 calories in the same serving size. If you’re tracking intake, the proof tells you almost everything you need to know.
Plain Rum vs. Flavored and Spiced Rum
Unflavored rum, whether white, gold, or dark, contains zero grams of sugar and zero grams of carbohydrates. The color differences come from aging in barrels or the addition of caramel coloring, neither of which adds meaningful calories beyond what the alcohol itself contributes. A shot of dark rum at 80 proof has the same calorie count as a shot of white rum at 80 proof.
Flavored and spiced rums are a different story. Coconut rum, mango rum, and other flavored varieties often include added sugars that don’t appear on the proof alone. These products can add 10 to 15 grams of sugar per serving, bumping the calorie count well above what you’d expect from the alcohol content. Because spirits aren’t required to carry nutrition labels in the U.S., the only reliable way to check is to look up the specific brand.
How Rum Compares to Other Spirits
At the same proof, all unflavored distilled spirits are nearly identical in calories. An 80-proof vodka, whiskey, gin, or tequila all land right around 97 calories per 1.5-ounce shot, just like rum. The differences are negligible because the calorie source is the same: pure alcohol. Choosing one spirit over another for calorie reasons makes no practical difference unless you’re comparing across proof levels.
Beer and wine, by contrast, carry additional calories from residual sugars and carbohydrates. A 12-ounce regular beer typically runs 150 calories, and a 5-ounce glass of wine sits around 120 to 130. A shot of 80-proof rum is lower in calories than either, though the comparison gets complicated once mixers enter the picture.
Where the Real Calories Hide: Mixers
A rum and Coke is one of the most popular ways to drink rum, and it roughly doubles the calorie count. A standard 8-ounce Coke adds about 100 calories from sugar, bringing your drink to nearly 200 calories total. Diet soda drops that mixer contribution to almost zero.
Cocktails with juice, simple syrup, or cream push the numbers much higher. A classic daiquiri made with lime juice and sugar syrup typically lands between 200 and 300 calories depending on the recipe. A mojito, with its muddled sugar and splash of soda, runs in a similar range. Piña coladas are the biggest offenders, with coconut cream and pineapple juice pushing a single glass past 400 calories in many bar recipes.
If you’re trying to keep calories low, the simplest approach is rum with soda water and a squeeze of lime. You get the full flavor of the spirit for just the 97 calories in the rum itself.
How Alcohol Calories Fit Into Your Diet
Alcohol calories are sometimes called “empty calories” because they provide energy without any vitamins, minerals, protein, or fiber. Your body also processes alcohol differently than food. It prioritizes burning off alcohol first, which temporarily slows down the metabolism of fats and carbohydrates from whatever you’ve eaten alongside your drink.
Among American adults who drink, alcohol accounts for roughly 9% of total daily calorie intake. That’s a meaningful chunk, especially for people in a calorie deficit or managing their weight. Two rum and Cokes in an evening adds about 400 calories, the equivalent of a full meal, with none of the nutritional value.
The U.S. Dietary Guidelines define one standard alcoholic drink as containing 14 grams of pure alcohol, which is exactly what you get in a 1.5-ounce pour of 80-proof spirits. Moderate drinking is defined as up to one drink per day for women and up to two for men. Staying within those limits keeps alcohol’s calorie contribution relatively small, in the range of 100 to 200 calories per day.