Calories in Black coffee
Per 1 mug, 240 ml
Black coffee has 2 calories per 1 mug, 240 ml. That is about 0% of a 2,000-calorie day. The same serving provides 0.3 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 1 calories and 0.1 g of protein. Against the thresholds EU food labelling uses, it qualifies as high in protein, fat free, low energy and strong protein per calorie. Effectively free — it is the milk, syrup and sugar that carry the calories.
Calories and macros
| Per 1 mug, 240 ml | Serving | Per 100 ml | % of daily intake |
|---|---|---|---|
| Calories | 2 kcal | 1 kcal | 0% |
| Protein | 0.3 g | 0.1 g | 1% |
| 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 black coffee
How many calories are in black coffee?
Black coffee has 2 calories per 1 mug, 240 ml, which is about 0% of a 2,000-calorie day.
How many calories are in 100 ml of black coffee?
100 ml of black coffee contains 1 calories.
How much protein is in black coffee?
One serving of 1 mug, 240 ml provides 0.3 g of protein — 0.1 g per 100 ml, or 1% of the 50 g daily reference intake.
How many carbs are in black coffee?
One serving of 1 mug, 240 ml contains 0.0 g of carbohydrate, of which 0.0 g is fibre.
What is black coffee a good source of?
Measured against EU food labelling thresholds, black coffee qualifies as high in protein, fat free, low energy and strong protein per calorie. At least 20% of its calories come from protein. Under 0.5 g of fat per 100 g. Under 20 calories per 100 ml — a lot of food for very little. About 15 g of protein for every 100 calories.