How Many Calories Are In Bourbon? | Straight Facts

Calories In Bourbon: Sizes, Proofs, And Pours

Bourbon’s calories come almost entirely from ethanol. No carbs or fat are present in straight bourbon, so proof and pour size drive the number. To keep things simple, treat 1.5 ounces of 80-proof bourbon as one standard drink. That pour lands right under 100 calories, and stronger bottles push it higher. The table below shows quick ranges you can use at the bar or at home.

Serving	80-Proof (40% ABV)	100-Proof (50% ABV)
1 oz	~65 kcal	~82 kcal
1.25 oz	~81 kcal	~102 kcal
1.5 oz (standard)	~97 kcal	~123 kcal
2 oz	~130 kcal	~164 kcal
3 oz (double)	~195 kcal	~246 kcal

These numbers reflect pure spirits with no sugar or mixers. They scale cleanly with proof. If you’re tracking intake, set your daily calorie needs first, then decide how a pour fits your plan.

How Many Calories In Bourbon Per Shot: Quick Math

A fast estimate helps when a menu doesn’t list nutrition. Alcohol provides 7 calories per gram. A shot of 80-proof bourbon is 40% alcohol by volume. One fluid ounce holds about 29.6 milliliters; ethanol weighs about 0.789 g per milliliter. Multiply volume by ABV and density to get grams of alcohol, then multiply by 7 to get calories. For 1.5 ounces, that lands right around 97–98 calories. Bump the proof to 100, and the same pour reaches about 122–123 calories.

What Changes The Count

Proof Of The Bottle

Proof is the lever. Higher proof means more alcohol per sip, so calories climb. Many classic bourbons sit at 80 to 100 proof, while barrel-strength releases go even higher. If you like a big-flavor pour, ask for a smaller serving or add ice to slow the pace.

Size Of The Pour

Bars use different jiggers. Some pours are 1.25 ounces, some are 1.5, and old-fashioned houses may serve 2. A second round or a generous home pour doubles the calories fast. Measure once or choose a smaller glass to keep portions steady.

What’s In The Glass

Neat bourbon is only alcohol and water. Add syrups, sugar, or liqueurs and the count jumps. Citrus juice adds a little, soda adds more, and cream liqueurs add a lot. Bitters add flavor, not meaningful calories at typical dashes.

Flavor, Age, And Add-Ins

Flavored bourbon and honey blends include sugars. Some finished bourbons pick up sweetness from wine casks. Labels differ, so treat anything sweetened as higher. Check the brand’s nutrition page when available, or scale from the straight-spirit baseline and add calories for any sweetener.

Shot, Neat, On The Rocks, Or In A Cocktail

Straight Pours

Neat, up, or on the rocks doesn’t change calories much; the difference is dilution. Ice melts and lowers strength, so each sip carries fewer calories, but the glass still contains the same total. If you nurse one large rock for a while, you’ll feel the slower pace and your total may end up lower simply because you drink less.

Old Fashioned

A classic build uses 2 ounces bourbon, a teaspoon of simple syrup, and bitters. That’s roughly 130–165 calories from the spirit plus about 16–20 from the syrup, putting most versions near 150–185 calories. A sugar cube muddled with water lands in the same range. Orange peel adds aroma, not calories.

Whiskey Sour

With 2 ounces bourbon, 1 ounce lemon juice, and 3/4 ounce simple syrup, you’re looking near 180–220 calories. Egg white adds texture, not much energy. Many bars dial syrup down; home sours can be trimmed further with half-sweet syrup.

Mint Julep

Juleps vary. A light hand with syrup keeps a 2-ounce build around 160–190 calories. Heavy syrup or crushed-ice refills drift higher. Use fresh mint and a long stir to wake flavor so you can use less sugar.

How Standard Drinks Work

In the U.S., a standard drink equals 14 grams of pure alcohol. For bourbon and other 80-proof spirits, that matches a 1.5-ounce shot. Health agencies use this unit to set guidance and label drinks in research. It’s a helpful anchor when estimating calories and pacing your night.

External Benchmarks You Can Trust

Public-health sources define a standard drink as 0.6 fluid ounces of pure alcohol (14 grams). A 1.5-ounce pour of 80-proof bourbon fits that definition. The CDC’s page on standard drink sizes uses the same numbers, and many nutrition databases list about 64 calories per fluid ounce for 80-proof spirits, which lines up with the math above.

Ways To Trim Bourbon Calories Without Losing Flavor

Order The Proof You Enjoy

Pick 80-proof bottles when taste allows. If you prefer a higher proof, ask for a 1-ounce pour. You’ll enjoy the character while keeping calories in check.

Use Smarter Sweetness

Simple syrup is easy to over-pour. Try a rich 2:1 syrup so you need less by volume, or swap in a few drops of aromatic bitters and expressed citrus. Sugar substitutes also work in batched drinks.

Stretch With Ice Or Soda

Club soda and a squeeze of lemon spread flavor with minimal calories. A highball with 1.5 ounces bourbon and chilled soda hovers near 100–110 calories depending on proof, and it lasts longer than a short pour.

Keep Tabs On Rounds

Pace yourself. Count standard drinks, not glasses. If you had a strong pour earlier, choose a lighter one next, or switch to a zero-proof sipper.

Common Myths And Realities

“Bourbon Has Carbs.”

Straight bourbon has no carbs. Fermentation converts grain sugars into alcohol, and distillation removes nearly everything else. Sweetness you taste comes from barrel compounds like vanillin and from perception, not sugar.

“Clear Spirits Have Fewer Calories.”

Color doesn’t matter. Proof and pour size do. Vodka, gin, rum, tequila, and bourbon all land near the same calories when proof matches.

“Diet Mixers Cancel Things Out.”

They don’t remove the alcohol calories. Diet soda or seltzer can keep totals low, which is helpful, but energy from ethanol remains the same.

Handy Cocktail Ranges

Use the cheat sheet below when planning a menu or tracking intake. Builds vary by bar, so treat the ranges as guides and adjust to your glassware and recipe.

Drink	Typical Build	Calories
Old Fashioned	2 oz bourbon, 1 tsp syrup, bitters	150–185
Whiskey Sour	2 oz bourbon, lemon, 3/4 oz syrup	180–220
Manhattan	2 oz bourbon, 1 oz sweet vermouth	165–205
Bourbon Highball	1.5 oz bourbon, soda	100–125
Mint Julep	2 oz bourbon, syrup, mint	160–220

Method, Math, And Assumptions

The figures in this guide come from two places: simple ethanol math and widely cited nutrition data for 80-proof spirits. Ethanol provides 7 calories per gram. One U.S. standard drink contains 14 grams of ethanol. Straight 80-proof spirits contain 40% alcohol by volume, so a 1.5-ounce pour matches that standard drink. From there, calories scale with proof and pour size. Cocktails add calories from syrups, liqueurs, and juice; ranges assume common recipes and bar measures.

Ready For The Next Step?

If you’re tuning your intake for weight goals, a short primer helps. Want a step-by-step walkthrough? Try our calories and weight loss guide.