Calories in Water
Per any amount
Water has 0 calories per any amount. That is about 0% of a 2,000-calorie day. The same serving provides 0.0 g of protein, 0.0 g of carbohydrate, 0.0 g of fat and 0.0 g of fibre. Per 100 ml, that works out at 0 calories and 0.0 g of protein. Against the thresholds EU food labelling uses, it qualifies as fat free and low energy. The only drink with no calories at all, and the easiest swap on this list.
Calories and macros
| Per any amount | Serving | Per 100 ml | % of daily intake |
|---|---|---|---|
| Calories | 0 kcal | 0 kcal | 0% |
| Protein | 0.0 g | 0.0 g | 0% |
| Carbohydrate | 0.0 g | 0.0 g | 0% |
| Fat | 0.0 g | 0.0 g | 0% |
| Fibre | 0.0 g | 0.0 g | 0% |
Daily intake percentages use the EU reference intakes an average adult label is based on: 2,000 kcal, 50 g protein, 260 g carbohydrate, 70 g fat, 30 g fibre.
What this is good for
These are the nutrition claims this food would qualify for under EU labelling rules — thresholds, not opinions.
Worth knowing
Figures are for a typical example and will vary by brand, ripeness and how it was cooked. For a target of your own, run the calorie calculator or take the short quiz. To log this without doing the arithmetic, Joules is free.
Figures last reviewed 29 August 2026.
Common questions about water
How many calories are in water?
Water has 0 calories per any amount, which is about 0% of a 2,000-calorie day.
How many calories are in 100 ml of water?
100 ml of water contains 0 calories.
How much protein is in water?
One serving of any amount provides 0.0 g of protein — 0.0 g per 100 ml, or 0% of the 50 g daily reference intake.
How many carbs are in water?
One serving of any amount contains 0.0 g of carbohydrate, of which 0.0 g is fibre.
What is water a good source of?
Measured against EU food labelling thresholds, water qualifies as fat free and low energy. Under 0.5 g of fat per 100 g. Under 20 calories per 100 ml — a lot of food for very little.