Calories in Whiskey: Nutrition Facts & Serving Sizes
Per 1 fl oz (32g)
Per 100g
Source: USDA FoodData Central, SR Legacy, March 2026.
A 1 fl oz pour of whiskey (32g) contains 27 calories with essentially 0g of protein, carbs, and fat at that serving size. Per 100g, whiskey provides 84 calories with 21.4g of carbs, 0.1g of protein, and 0.1g of fat. Note: the higher per-100g carb count here reflects the specific USDA entry and is atypical for straight whiskey, which is generally considered very low in carbs. For straight whiskeys and bourbons, most published values show near-zero carbs. The calorie content primarily comes from alcohol. A standard 1.5 fl oz shot of whiskey runs roughly 40 to 45 calories based on this data. Whiskey is one of the lower-calorie spirits you can order at a bar. For anyone tracking macros on a night out, whiskey neat or on the rocks is one of the cleanest choices. There are no sugary mixers involved, and the calorie cost per drink is manageable compared to cocktails, beer, or wine.
Nutrition Highlights
Calories by Serving Size
| Serving | Cal | Protein | Carbs | Fat | Fiber |
|---|---|---|---|---|---|
| 1 fl oz (32g) | 27.1 | 0g | 6.9g | 0g | 0g |
| 100g | 84 | 0.1g | 21.4g | 0.1g | 0g |
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Full Nutrition Facts (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 84 | 4% |
| Protein | 0.1g | |
| Total Fat | 0.1g | |
| Total Carbohydrates | 21.4g | 8% |
| Dietary Fiber | 0g | |
| Sugars | 0g | |
| Sodium | 33mg | 1% |
Vitamins & Minerals (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calcium | 2mg | 0% |
| Iron | 0.1mg | 1% |
| Potassium | 7mg | 0% |
| Vitamin A | 1mcg | 0% |
| Vitamin C | 2.7mg | 3% |
| Magnesium | 1mg | 0% |
| Phosphorus | 6mg | 0% |
| Zinc | 0.1mg | 1% |
| Selenium | 0.1mcg | 0% |
% Daily Values based on a 2,000 calorie diet (FDA reference).
Health Benefits of Whiskey
Whiskey, like other distilled spirits, provides no meaningful nutritional benefits. The calories come from alcohol, which the body metabolizes ahead of other macronutrients. When alcohol is being processed by the liver, fat oxidation effectively pauses, meaning any fat you would normally be burning gets put on hold.
For those focused on body composition, the main concern with whiskey is the same as with any alcohol. Alcohol suppresses testosterone acutely, increases cortisol, and disrupts sleep quality (particularly REM sleep), all of which impair muscle recovery and growth. A night of heavier drinking can impact training performance for 24 to 48 hours afterward.
That said, whiskey drunk straight or on the rocks is one of the most calorie-controlled alcohol choices available. There are no added sugars, mixers, or syrups. The calorie cost per drink is predictable and manageable. For anyone who drinks socially, knowing that a 1 fl oz pour is around 27 calories lets you account for it accurately without completely derailing your weekly calorie budget.
Compared to a margarita (250 to 400 calories), a pint of craft beer (200 to 300 calories), or a Moscow mule (180 to 250 calories), a neat whiskey is significantly lower in total calories. If you are going to drink, choosing spirits over mixed cocktails and beer is one of the highest-leverage ways to reduce alcohol-related calorie intake.
Dietary Considerations
Whiskey is gluten-free in its distilled form (the distillation process removes gluten proteins from grain-based spirits). It is vegan and dairy-free. Whiskey is technically very low in carbs based on most lab analyses, though this specific USDA entry shows an atypical carb value. For practical purposes, straight whiskey is among the most keto-compatible alcoholic options. For weight loss, whiskey is better than beer, wine, or cocktails due to its lower calorie-per-drink profile. Drink it straight, on ice, or with soda water to keep calorie counts accurate and low.
Daily Intake (100g)
100g of whiskey provides 4% of a 2,000-calorie diet.
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Frequently Asked Questions
How many calories in whiskey?
One fl oz of whiskey (32g) contains about 27 calories. Per 100g, whiskey provides 84 calories. A standard 1.5 fl oz shot contains approximately 40 to 45 calories. All the calories come from alcohol, with near-zero carbs, protein, and fat in a straight pour.
Is whiskey good for weight loss?
Whiskey is not beneficial for weight loss, but it is one of the lower-calorie alcohol options. At around 27 calories per fl oz, it is lower than beer, wine, and most cocktails. Alcohol also pauses fat burning while it is metabolized, so no alcohol choice is truly weight-loss friendly. Whiskey neat or on ice minimizes additional calorie intake from mixers.
How much protein in whiskey?
Whiskey has 0.1g of protein per 100g and essentially zero protein per standard serving. There is no meaningful protein content in any distilled spirit. Whiskey should not factor into your protein calculations at all.
Is whiskey keto-friendly?
Straight whiskey is generally considered keto-compatible due to its near-zero carb content. While this USDA entry shows an unusually high carb value (21.4g per 100g), most whiskey analysis shows very low to zero carbs. A 1 fl oz pour of straight whiskey is typically considered safe on keto. Avoid whiskey-based cocktails with juices or sweeteners.
Does whiskey have more calories than vodka?
Based on USDA data, vodka has 231 calories per 100g and whiskey has 84 calories per 100g, making whiskey significantly lower on this measure. Per 1.5 fl oz shot, vodka (97 cal) has more calories than whiskey (about 40 to 45 cal) based on standard ABV differences. The calorie content of spirits scales directly with alcohol percentage.
What is the lowest calorie way to drink whiskey?
Whiskey neat or on the rocks is the lowest calorie option, adding zero extra calories from mixers. Whiskey with soda water is also near-zero additional calories. Avoid whiskey sour (adds lemon juice and sometimes sugar syrup), Old Fashioned (adds sugar), or other cocktails with sweetened mixers, which can add 50 to 150 extra calories per drink.
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