In this article (5 sections)
A regular 12 fl oz beer is roughly 150 calories, a 5 fl oz wine roughly 120, and a 1.5 fl oz shot of 80-proof liquor roughly 100. These rounded US reference examples appear in CDC research on alcoholic-beverage energy. Your product and actual pour may differ.
For the historical Danish records, see calories in alcohol. This guide focuses on US servings and a practical way to calculate a drink without confusing fluid ounces with weight ounces.
What is one US standard drink?
NIAAA's Rethinking Drinking explains that 12 fl oz of regular beer, 5 fl oz of table wine and 1.5 fl oz of 80-proof spirits contain similar amounts of alcohol at the stated strengths. A stronger beer or larger wine pour can contain more than one standard drink.
| US reference serving | Approximate metric volume | Rounded calorie example |
|---|---|---|
| Regular beer, 12 fl oz | 355 mL | 150 kcal |
| Table wine, 5 fl oz | 148 mL | 120 kcal |
| 80-proof spirits, 1.5 fl oz | 44 mL | 100 kcal before mixers |
These are examples, not drinking recommendations. Standard drinks compare ethanol, not total energy or safety. Calorie content cannot establish a safe alcohol intake.
Why do calories vary when alcohol strength is the same?
Ethanol contributes about 7 kcal/g. A drink can also contain carbohydrate, added sugar or cream. A dry wine is not calorie-free simply because it tastes unsweetened. A sweetened mixer adds its own energy to the liquor.
ABV is alcohol by volume, not calories per serving. Two products at the same ABV can have different energy values. Use the manufacturer's nutrition information where available, or a suitable beverage record with its serving basis. The NIAAA alcohol calculators include a calorie calculator for reference.
How do you calculate a larger pour?
For the same product, scale from its stated serving. If a label gives 150 kcal per 12 fl oz, a measured 16 fl oz pour gives 150 x 16 / 12 = 200 kcal. A US pint is 16 fl oz, about 473 mL; it is not a 500 mL serving or a 568 mL UK pint.
Do not multiply a per-100-g database value by milliliters without a documented density conversion. Liquid volume and weight are different measurements. This is especially relevant for spirits, where treating 44 mL as 44 g can distort a calculation.
How do you log a cocktail?
Record the spirit, each mixer and additions separately. For a hypothetical drink with 100 kcal of spirits and a mixer label giving 80 kcal for the amount used, the total is 180 kcal before any other ingredients.
Check whether "soda" means plain carbonated water or a sweetened soft drink. Also check juice, syrup, cream, sugar rims and the actual liquor pour. A generic cocktail entry may use a different recipe.
In Calorie.one, enter the drink and amount, then review the matched source and portion. An estimate does not become measured because an ingredient has a database match. See how accurate calorie counts are.
Frequently asked questions
Do alcohol calories count?
Yes. Alcohol supplies energy. Include drinks and mixers if keeping an energy-intake record; do not replace meals or compensate with extra restriction to fit them into a budget.
Is vodka lower in calories than whiskey?
At the same strength and comparable serving, unsweetened spirits often have similar energy. Flavored or sweetened products, proof and pour size can change the answer. Check the actual product rather than the spirit name alone.
Does alcohol-free beer have calories?
It can. Removing or reducing alcohol does not remove every source of energy. Compare the label and actual serving; the beer guide explains the historical examples.