How many calories are in kombucha tea?

One 12 fl oz bottle of kombucha holds 60 calories. Per 100 g the drink runs 16 calories, which puts it near the bottom of the bottled-drink aisle. Almost all of it is sugar: 14.8 g in the bottle, and nothing else in the record carries weight — no fat, no fiber, barely any protein.

You'd need to walk about 12 minutes to burn the 60 calories in one 12 fl oz bottle (372 g).

Glass of amber kombucha tea with foam next to a clear unlabeled bottle

How long does it take to burn off kombucha tea?

One 12 fl oz bottle (372 g) is 60 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:

ActivityTime to burn 60 kcal
Walking, brisk12 min
Cycling, moderate8 min
Swimming, moderate9 min
Jogging7 min
Weight training, moderate13 min

Times are for a 155 lb adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (372 g); change it to what you actually ate. BodyPal works this out from your steps automatically.

On this page

Kombucha tea quick facts

The calorie count here comes from FNDDS 2710509, "Tea, kombucha", the Survey 2021–2023 record for plain fermented sweetened tea. It is the only generic kombucha entry USDA carries, and it describes exactly what a shopper pours out of a bottle rather than a concentrate or a home-brew starter. The branded labels in the database cluster tightly around it, from 13 to 25 calories per 100 g, so the generic row is a fair stand-in for whatever is in your fridge.

The serving column below is USDA's own household measure for a can or bottle: 12 fl oz, weighed at 372 g.

NutrientPer 100 gPer 1 bottle (12 fl oz) (372 g)% Daily Value
Calories1660
Total fat0.01 g0.0 g0%
Saturated fat0 g0.0 g0%
Carbohydrate3.98 g14.8 g5%
Dietary fiber0 g0.0 g0%
Total sugars3.99 g14.8 g
Protein0.1 g0.4 g1%
Sodium2 mg7 mg0%

% Daily Value is based on a 2,000-calorie diet.

Verified nutrition data

Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →

Two rows you would expect on a store label are missing here: added sugars and trans fat. This edition of FNDDS does not publish either value for kombucha, so rather than guess at the split between brewing sugar and juice sugar, we leave them out. Cholesterol is 0 mg. Potassium comes to 15 mg in the bottle, against a Daily Value of 4,700 mg, so it rounds to nothing.

There is a tidy check hidden in the table. Carbohydrate at 4 calories per gram accounts for 59 of the bottle's 60 calories, and the 0.4 g of protein covers the rest. Nothing else in kombucha is paying rent. The FDA Daily Value reference is what the percentages above are built on.

US servings, from one ounce to a 16 oz bottle

ServingWeightCalories
1 oz28 g4 kcal
1 fl oz, with ice23 g4 kcal
1 fl oz, no ice31 g5 kcal
1 glass, 8 fl oz248 g40 kcal
1 can or bottle, 12 fl oz372 g60 kcal
1 large bottle, 16 fl oz496 g79 kcal
Per 100 g100 g16 kcal

Most of those are USDA household measures: the fluid ounce at 31 g poured neat, the same ounce over ice at 23 g, the 1 oz weight, and the 12 fl oz can or bottle at 372 g. The 8 fl oz glass and the 16 fl oz bottle are our own arithmetic from the USDA 100 g figure, scaled up from that 31 g per fluid ounce, not USDA servings in their own right.

Ice is the quiet variable, and it moves the math more than the flavor does. USDA weighs a fluid ounce of kombucha poured over ice at 23 g against 31 g poured neat, because the ice is displacing liquid in the glass. That is about 26 percent less drink in the same glass — and about 26 percent fewer calories. A tall glass over ice can land closer to 30 calories than 40 without anyone touching the bottle.

The 16 fl oz size is worth knowing because it is what most people actually buy. At 79 calories it is still a light drink, but it carries 19.7 g of carbohydrate, which is where it stops behaving like plain tea.

Bottle to bottle: 13 to 25 calories per 100 g

Three glasses of amber kombucha and a brown swing-top bottle, with 1 glass (8 fl oz) 40 cal and 1 bottle (12 fl oz) 60 cal

Fermentation length is what separates one bottle from another. The longer the yeast works, the more of the brewing sugar it eats, and the lower the calorie count drops. Flavoring juice added after fermentation pushes it back up.

VersionPer 100 gTypical servingCalories
Plain kombucha, USDA generic16 kcal12 fl oz bottle (372 g)60 kcal
Kombucha Town Green Jasmine13 kcal8 fl oz (250 ml)33 kcal
Health-Ade Kombucha Tea15 kcal8 fl oz (236.5 ml)35 kcal
Bucha Sparkling, Yuzu Lemon18 kcal8 fl oz (240 ml)43 kcal
Bucha Sparkling, Verbena Rose20 kcal8 fl oz (240 ml)48 kcal
Cultured Lemonade Kombucha Tea25 kcal8 fl oz (240 ml)60 kcal

The spread is real but small. The lemonade style at 25 calories per 100 g is nearly twice the lightest jasmine bottle at 13, and an 8 fl oz glass of it hits 60 calories — the same as a whole 12 fl oz bottle of the plain USDA record. In practice, none of these will decide a day's calories. What decides it is how many bottles you open.

Serving sizes on the labels are all 8 fl oz, which is where the trap sits. A 16 fl oz bottle of Health-Ade is two label servings, so the 35 on the side of the glass becomes 70 by the time the bottle is empty.

Sugar is the only row that moves

Kombucha is functionally a sugar solution with a tea flavor. Carbohydrate is 3.98 g per 100 g, and practically all of that is sugar, with nothing left over for starch or fiber. A 12 fl oz bottle delivers 14.8 g of it, and an 8 fl oz glass 9.9 g.

USDA does not publish added sugars for this record, so we can't tell you how much of that 14.8 g is brewing sugar that survived fermentation and how much is juice added afterward. That distinction matters if you are following the Dietary Guidelines advice on added sugars, and the honest answer is that this record won't settle it. The label on your own bottle will.

Everything else in the profile is a rounding error. Sodium is 7 mg in a full bottle, which is 0% of the Daily Value and, for scale, a small fraction of what a pinch of table salt would add. Fat is 0.0 g, fiber is 0.0 g, protein is 0.4 g. If you're logging kombucha, the only line that needs to be right is carbohydrate.

That makes kombucha a genuinely useful swap for a sweetened soda if the goal is fewer calories, and a poor swap for water if the goal is none. MyPlate's guidance on drinks puts water and unsweetened tea first for exactly that reason.

How does kombucha compare with iced tea?

DrinkPer 100 gUS servingCalories
Kombucha tea16 kcal8 fl oz glass, 248 g40 kcal
Bottled green iced tea, sweetened27 kcal8 fl oz glass, 237 g64 kcal
Iced tea and lemonade drink, light21 kcal8 fl oz glass, 237 g50 kcal
Bottled green iced tea, diet4 kcal8 fl oz glass, 237 g9 kcal

The three iced teas are our own arithmetic at the standard 237 g per cup, while kombucha uses USDA's own heavier 31 g per fluid ounce, so the kombucha glass is a slightly bigger pour. Even with that handicap it comes out lighter.

Our take: against sweetened bottled tea, kombucha wins — 40 calories a glass against 64 is about 38 percent less for the same drink in your hand, and it beats the light lemonade-tea blend too. Against the diet version at 9 calories a glass, kombucha loses badly, running about four and a half times higher. So if you're counting hard, the diet tea is the cheaper glass and it isn't close. If you're drinking kombucha for the fermentation and the taste, one bottle a day at 60 calories is a small line item that doesn't need managing — three bottles a day is 180, and that one does.

Most popular kombucha tea brands in the United States

Ranked by how widely each product appears among foods sold in the United States, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each Nutrition Facts label, checked against USDA FoodData Central.

ProductCalories (per 100 g)
Bucha Sparkling Kombucha Tea Yuzu Lemon18 cal
Kombucha Town Green Jasmine13 cal
Health-Ade Kombucha Tea15 cal
Bucha Sparkling Kombucha Tea Verbena Rose20 cal
Kombucha Town Original Ginger13 cal
Marin Kombucha13 cal

Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.

Kombucha tea FAQs

How many calories are in kombucha tea?

A 12 fl oz bottle of kombucha carries 60 calories, or 16 calories per 100 g. An 8 fl oz glass poured from that bottle works out to 40. Kombucha sits at the low end of the drinks aisle because the yeast eats part of the sugar the tea was brewed with.

How much sugar is in a bottle of kombucha?

14.8 g of sugar in a 12 fl oz bottle, which is 3.99 g per 100 g. That is practically all of the carbohydrate in the drink. USDA's record does not split out added sugars, so there is no way to say from this data how much of it came from the brewing sugar.

How many calories in a 16 oz kombucha?

About 79 calories. USDA weighs 1 fl oz of kombucha at 31 g, so 16 fl oz comes to 496 g — our own arithmetic from the USDA 100 g figure, not a USDA serving. That size also brings about 19.7 g of carbohydrate, nearly all of it sugar.

How many carbs are in kombucha?

3.98 g per 100 g, so 14.8 g in a 12 fl oz bottle and 9.9 g in an 8 fl oz glass. That is 5% of the Daily Value for carbohydrate in the bottle. Fiber is zero, so every one of those grams counts toward net carbs.

Is kombucha keto-friendly?

A 12 fl oz bottle spends 14.8 g of carbohydrate, and none of it is offset by fiber. On a daily carb budget of 20 to 30 g, that is most of the day in one bottle. An 8 fl oz pour at 9.9 g is the more workable size.

Does kombucha have caffeine?

USDA's kombucha record carries 16 calories per 100 g but no caffeine value at all, so we won't quote a number. Kombucha is brewed from tea, so some caffeine does carry over from the leaves. The calorie and carbohydrate figures on this page are unaffected either way.

Does kombucha contain alcohol?

The 60 calories in a 12 fl oz bottle are fully accounted for by 14.8 g of carbohydrate and 0.4 g of protein, which leaves very little room for alcohol calories. USDA's record publishes no alcohol figure, so we won't quote one; kombucha is fermented, and a trace remains.

Is store-bought kombucha higher in calories than homemade?

Store-bought labels run 13 to 25 calories per 100 g against USDA's generic 16, so the spread is small in either direction. USDA publishes no record for homemade kombucha, so there is no figure to compare against. Longer fermentation eats more sugar, and that is what moves the number.

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