Calories in Oat milk
Per 1 cup, 240 g
Oat milk has 120 calories per 1 cup, 240 g. That is about 6% of a 2,000-calorie day. The same serving provides 3.0 g of protein, 16.0 g of carbohydrate, 5.0 g of fat and 1.9 g of fibre. Per 100 g, that works out at 50 calories and 1.3 g of protein. Against the thresholds EU food labelling uses, it qualifies as low in fat and low energy density. Much lower in protein than dairy — worth knowing if it is a big part of your day.
Calories and macros
| Per 1 cup, 240 g | Serving | Per 100 g | % of daily intake |
|---|---|---|---|
| Calories | 120 kcal | 50 kcal | 6% |
| Protein | 3.0 g | 1.3 g | 6% |
| Carbohydrate | 16.0 g | 6.7 g | 6% |
| Fat | 5.0 g | 2.1 g | 7% |
| Fibre | 1.9 g | 0.8 g | 6% |
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 oat milk
How many calories are in oat milk?
Oat milk has 120 calories per 1 cup, 240 g, which is about 6% of a 2,000-calorie day.
How many calories are in 100 g of oat milk?
100 g of oat milk contains 50 calories.
How much protein is in oat milk?
One serving of 1 cup, 240 g provides 3.0 g of protein — 1.3 g per 100 g, or 6% of the 50 g daily reference intake.
How many carbs are in oat milk?
One serving of 1 cup, 240 g contains 16.0 g of carbohydrate, of which 1.9 g is fibre.
What is oat milk a good source of?
Measured against EU food labelling thresholds, oat milk qualifies as low in fat and low energy density. Under 3 g of fat per 100 g. Under 120 calories per 100 g, so a filling portion stays affordable.