How many calories are in tonic water?
A 12 fl oz can or bottle of tonic water holds 124 calories, and per 100 g the drink runs 34 calories. That is not seltzer with a twist. Tonic is sweetened soda carrying quinine, and the 32.2 g of sugar in that bottle is where every one of those calories comes from.
You'd need to walk about 25 minutes to burn the 124 calories in a 12 fl oz can or bottle (366 g).
How long does it take to burn off tonic water?
A 12 fl oz can or bottle (366 g) is 124 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 124 kcal |
|---|---|
| Walking, brisk | 25 min |
| Cycling, moderate | 16 min |
| Swimming, moderate | 18 min |
| Jogging | 15 min |
| Weight training, moderate | 28 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 (366 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Tonic water quick facts
- US servings from one ounce to a 16 fl oz bottle
- Gin and tonic vodka tonic and the diet versions
- The sugar row is the whole story
- How does tonic water compare?
- Most popular tonic water brands
- Tonic water FAQs
Tonic water quick facts
The row on this page is SR Legacy 171869, "Beverages, carbonated, tonic water". It is the drink itself, the thing in your hand before anything gets poured into it, and it comes with US household measures already attached: 11, 12 and 16 fl oz. The FNDDS entry for the same beverage, 2710538, matches it to the decimal, so there is nothing to reconcile between the two editions.
Everything below scales from that one figure of 34 calories per 100 g. Tonic has no fat, no protein and no fiber, which makes it one of the simplest labels in the drinks aisle and one of the easiest to underestimate.
| Nutrient | Per 100 g | Per 12 fl oz (366 g) | % Daily Value |
|---|---|---|---|
| Calories | 34 | 124 | — |
| Total fat | 0 g | 0 g | 0% |
| Saturated fat | 0 g | 0 g | 0% |
| Carbohydrate | 8.8 g | 32.2 g | 12% |
| Dietary fiber | 0 g | 0 g | 0% |
| Total sugars | 8.8 g | 32.2 g | — |
| Protein | 0 g | 0 g | 0% |
| Sodium | 12 mg | 44 mg | 2% |
% 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 →
There is no added sugars row here because USDA does not publish an added sugars value for this record, even though the sugar in tonic water is put there by the bottler rather than grown into it. Cholesterol and potassium both come back at 0 for this beverage, so they are not worth a row of their own.
US servings from one ounce to a 16 fl oz bottle
| Serving | Weight | Calories |
|---|---|---|
| 1 fl oz | 30.5 g | 10 kcal |
| 1 oz | 28.4 g | 10 kcal |
| 1 bottle, 11 fl oz | 336 g | 114 kcal |
| 1 can or bottle, 12 fl oz | 366 g | 124 kcal |
| 1 can or bottle, 16 fl oz | 488 g | 166 kcal |
| Per 100 g | 100 g | 34 kcal |
The 11, 12 and 16 fl oz lines are USDA household measures for this record, weights included. The 1 oz line is our own arithmetic from the USDA 100 g figure, not a USDA serving, and it is there for one reason: fluid ounces and weight ounces are not the same thing, and tonic is one of the foods where people mix them up. A fluid ounce of tonic weighs 30.5 g, a weight ounce is 28.4 g, and at this calorie density both round to 10 calories, so the mistake costs nothing here. It costs plenty on denser drinks.
The number worth remembering is the one nobody pours: a bar jigger of tonic is meaningless, because tonic goes in by the splash. A generous highball pour of 6 fl oz is roughly 62 calories, half the bottle line above — our own arithmetic from the USDA 100 g figure, not a USDA serving.
Gin and tonic vodka tonic and the diet versions
| Version | Per 100 g | Typical serving | Calories |
|---|---|---|---|
| Gin and tonic | 84 kcal | 1 drink, 225 g | 189 kcal |
| Vodka and tonic | 84 kcal | 1 drink, 225 g | 189 kcal |
| Tonic water, 16.9 fl oz bottle | 34 kcal | 1 bottle, 507 g | 172 kcal |
| Diet tonic water | 0 kcal | 12 fl oz can, 355 ml | 0 kcal |
| Naturally light tonic water | 15 kcal | 200 ml bottle | 30 kcal |
A standard gin and tonic is 189 calories. Per 100 g the mixed drink is 84 calories against tonic's 34, but the carbohydrate goes the other way: 6.57 g per 100 g in the cocktail versus 8.8 g in straight tonic, because the gin dilutes the soda. Run that out over a 225 g drink and you get 14.8 g of carbohydrate, worth about 59 calories — our own arithmetic from the USDA figures, not a USDA line. The remaining 130 calories are the spirit.
That single sum settles the most common bar question on this page. Switching to diet tonic does not make the drink free; it makes it roughly 130 calories instead of 189, because alcohol carries calories that no mixer swap can touch. A vodka tonic lands in exactly the same place — USDA gives both cocktails identical numbers, since the pour and the proof are close enough that the recipes converge.
The bottled versions split cleanly. Of the five versions in the table, only diet tonic is genuinely zero. Schweppes Diet Tonic Water lists 0 calories per 100 g and 0 for the whole 355 ml can. Fever-Tree Naturally Light sits between the extremes at 15 calories per 100 g, so a 200 ml bottle is 30 calories. Full-strength brand labels cluster tightly around the USDA row: Fever-Tree Premium at 33, Mediterranean at 34, Schweppes at 37, Premium Indian at 38 calories per 100 g. Pick any of them and you are within a few calories of 34 per 100 g.
The sugar row is the whole story
Tonic water has one nutrient that matters and it is carbohydrate, all of it sugar. A 12 fl oz bottle delivers 32.2 g, which is 12% of the Daily Value for carbohydrate. Total sugars carry no Daily Value on the US label, which is exactly why the panel looks so calm: the biggest number on the bottle is the one with no percentage next to it.
The Dietary Guidelines for Americans put a ceiling on added sugars rather than total sugars, and USDA does not publish an added sugars figure for this record, so we are not going to run that comparison for you with numbers that do not exist. What we can say is the shape of it: for a drink whose sugar is entirely put there by the bottler, 32.2 g in one bottle is a meaningful share of anyone's day.
The sodium row is the opposite kind of surprise. 44 mg in a 12 fl oz bottle is 2% of the Daily Value, less than a slice of bread. If you are watching sodium, tonic is not the problem in your glass. If you are watching sugar, it is.
How does tonic water compare?
| Beverage | Per 100 g | US serving | Calories |
|---|---|---|---|
| Tonic water | 34 kcal | 12 fl oz, 366 g | 124 kcal |
| Water beverage, fruit flavored | 18 kcal | 1 cup, 237 g | 43 kcal |
| Water, non-carbonated, flavored | 1 kcal | 1 cup, 237 g | 2 kcal |
| Water, carbonated, plain | 0 kcal | 12 fl oz, 366 g | 0 kcal |
The cup servings for the two flavored waters and the 12 fl oz line for plain carbonated water are our own arithmetic from the USDA 100 g figures, scaled so the swap is like for like.
Our take: tonic water is the densest of these four by a wide margin, and plain carbonated water is the only one of them with no calories at all. If you drink gin and tonics regularly, the highest-leverage change is not the gin and it is not the diet tonic — it is club soda with a lime, which takes the mixer's 124 calories to 0 while leaving the drink recognizable. If you want the quinine bitterness, buy the naturally light bottle at 15 calories per 100 g and stop pretending the full-sugar version is water with bubbles. And if you are drinking tonic on its own as a soft drink, treat it as a soda, because that is what the numbers say it is.
Most popular tonic water 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.
| Product | Calories (per 100 g) |
|---|---|
| Fever-Tree Mediterranean Tonic Water | 34 cal |
| Fever-Tree Premium Tonic Water | 33 cal |
| Fever-Tree Naturally Light Tonic Water | 15 cal |
| Fever-Tree Premium Indian Tonic Water | 38 cal |
| Schweppes Tonic Water | 37 cal |
| Schweppes Diet Tonic Water | 0 cal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.
Tonic water FAQs
How many calories are in a gin and tonic water?
A standard gin and tonic is 189 calories for a 225 g drink, or 84 calories per 100 g. Roughly 59 of those calories are the tonic's 14.8 g of sugar, by our own arithmetic from the USDA figures; the rest is the gin itself.
How many calories are in tonic water?
Tonic water is 34 calories per 100 g, which makes 124 calories in a 12 fl oz can or bottle and 166 in a 16 fl oz one. An 11 fl oz bottle lands at 114. All of it is sugar calories, since tonic has no fat and no protein.
How many calories are in a vodka tonic?
A vodka tonic is 189 calories for a 225 g drink, the same as a gin and tonic. USDA lists both at 84 calories per 100 g with 6.57 g of carbohydrate, because the spirits are close in strength and the recipe pours the same amount of tonic.
How many calories are in a 12 oz tonic water?
A 12 fl oz serving weighs 366 g and carries 124 calories with 32.2 g of sugar. That is 12% of the Daily Value for carbohydrate on a 2,000-calorie diet. Pour it into a highball over ice and you are drinking a soda, not a mixer that is free.
Does diet tonic water have calories?
Diet tonic water is 0 calories. The Schweppes Diet Tonic Water label lists 0 calories per 100 g and 0 for the full 355 ml can. Naturally light tonic sits in between at 15 calories per 100 g, or 30 calories for a 200 ml bottle.
Is tonic water the same as club soda?
No: plain carbonated water is 0 calories per 100 g, while tonic water is 34. In a 12 fl oz glass that is a gap of 124 calories and 32.2 g of sugar. Club soda and seltzer are unsweetened; tonic is a sweetened soft drink flavored with quinine.
How much sugar is in tonic water?
Tonic water carries 8.8 g of sugar per 100 g, so a 12 fl oz bottle holds 32.2 g, about eight teaspoons by our own arithmetic. USDA does not publish an added sugars figure for this record, though in practice the sugar in tonic is all added.
How many calories are in a bottle of tonic water?
Bottle size decides it: 114 calories for 11 fl oz, 124 for 12 fl oz, 166 for a 16 fl oz can and 172 for a 16.9 fl oz bottle. All four run on the same 34 calories per 100 g, so the calories scale straight with the pour.
Similar foods
- Sweet tea — 119 cal for 12 fl oz glass
- Cappuccino — 65 cal per cup (8 fl oz)
- Root beer — 152 cal for 12 fl oz glass
- Lime juice — 11 cal per Juice of 1 lime
- Apple cider — 114 cal per cup
- Bubble Tea — 239 cal per drink
Count it without the math
Point the camera at the glass and BodyPal counts it for you, mixer and all.
