Updated April 2026.
A 1.5-ounce shot of 80-proof (40% ABV) bourbon is about 97 calories, and those calories are almost all ethanol. USDA FoodData Central lists 80-proof distilled spirits at 231 kcal per 100 g; a 1.5-ounce jigger is about 42 g, which is ~97 kcal. NIAAA’s 14 grams of alcohol at 7 kcal/g is 98 kcal. Unflavored bourbon has 0 g carbohydrate on that USDA line.
Proof is the lever. A 1.5-ounce pour of 100-proof bourbon is 1.25 standard drinks and about 120–125 calories. Honey, maple, and cinnamon flavored whiskies add sugar the USDA 80-proof line does not include. Read the label. This is not a weight-loss plan.
Updated April 2026. Straight bourbon is still whiskey: ≥51% corn, new charred oak, bottled at ≥40% ABV (TTB). Calories do not care about Kentucky.
Calories vs proof (1.5 oz pour)
| Pour | ABV | Std drinks | Approx. kcal | Carbs |
|---|---|---|---|---|
| 80-proof bourbon (most standard bottles) | 40% | 1.00 | ~97 | 0 g (USDA 80-proof spirits) |
| 90-proof | 45% | 1.13 | ~110 | 0 g if unflavored |
| 100-proof / bottled-in-bond | 50% | 1.25 | ~120–125 | 0 g if unflavored |
| Barrel-proof example 120 proof | 60% | 1.50 | ~145 | 0 g if unflavored |
| Old Fashioned (bourbon + sugar + bitters) | — | ~1.3–2 depending on pour | sugar adds 15–50+ | from the cube or syrup |
| Cola highball (1.5 oz 80-proof + 8 oz cola) | — | 1.00 from the whiskey | ~97 + ~90–100 cola | from the soda |
The 2022 page compared Jameson (Irish whiskey) and Johnnie Walker (blended Scotch) as if they were bourbon brands. They are not. At the same 80 proof, USDA treats gin, rum, vodka, and whiskey as the same 97-kcal shot. Brand is not a calorie loophole. See how much whiskey for the drink count, and Jim Beam substitutes if you want another 80-proof bourbon, not a lighter calorie.
Why bourbon is “zero carb” and still not diet food
Distillation leaves ethanol and water. Fermentable sugar from corn does not survive as carbohydrate in unflavored straight bourbon. TTB identity (27 CFR Part 5) does not require a nutrition panel on most spirits. Flavored whiskey — honey, maple, smoked maple, cinnamon — is a different class once sugar or flavoring is added. Those calories are not in the 97-kcal USDA row.
Mixers are where the number jumps. Ginger ale, cola, sweet vermouth, and a 2-ounce house Old Fashioned all add sugar or extra whiskey. A “skinny” pour that is still 2 ounces of 100-proof is 1.67 drinks and ~160 kcal from ethanol alone. Ice is 0 kcal and does not metabolize alcohol.
Gluten, “clean,” and what we will not claim
Bourbon is made from grain, often including rye or wheat plus corn. Distillation removes proteins; many people with celiac disease tolerate distilled spirits, but that is a clinician-and-label question, not a guarantee from this page. We are not printing “bourbon is gluten-free and therefore healthy.” Ethanol is 7 kcal/g. Four 97-kcal shots are four drinks and about 390 kcal, and NIAAA’s binge pattern for women is four drinks in about two hours.
Wild Turkey 101 is 50.5% ABV. Jack Daniel’s Tennessee whiskey is charcoal-mellowed Tennessee whiskey, not bourbon, but the 80-proof calorie line still applies if it is 40%. Read the proof. For a 1.5-ounce pour size, see how many mL is a shot.
If you are counting
- 80-proof, 1.5 oz, neat or with soda water: ~97 kcal, 1 drink.
- Scale linearly with proof and ounces.
- Count the mixer from its own label.
- Barrel-proof is not a “small sip” just because the glass is small.
Storage does not change calories. Bourbon does not go sour like mix. See does Crown Royal go bad for distilled-spirits storage. Smoky or maple SKUs can be flavored whiskey — see smoky bourbon for the identity split, not a calorie hack.
A fifth is not a “few shots”
A 750 mL bottle of 80-proof bourbon is about 17 standard drinks and about 1,650 kcal if you somehow finished it — inventory, not a weekend plan. See shots in a 750ml bottle. A 2-ounce steakhouse pour is 1.33 drinks and ~130 kcal before the Old Fashioned sugar. Restaurant nutrition boards, when they exist, often assume a 1.5-ounce spirit pour and then add the mixer. Ask. A “bourbon flight” of three 0.5-ounce tastes of 100-proof is 1.25 drinks hiding in tiny glasses.
Bitters are a dash, not a meal. Sweet vermouth in a Manhattan is wine-strength carbohydrate plus extra ethanol. Count it. Soda water is the only common mixer that leaves the 97-kcal shot almost unchanged. For cola specifically, see soda mixers — the whiskey version of that highball is the same sugar problem.
Sources
- USDA FoodData Central: Alcoholic beverage, distilled, all 80 proof — 231 kcal/100 g; 0 g carb; ~97 kcal per 1.5 fl oz (~42 g).
- NIAAA: 14 g alcohol per standard drink; ethanol ~7 kcal/g.
- TTB: bourbon identity (≥51% corn, new charred oak, bottled ≥40% ABV). Flavored whiskey is a separate class once sugar/flavor is added.