A typical serving of skim milk (1 cup, 245 g) has about 83 calories. Per 100 g: 34 kcal, 3.4 g protein, 5 g carbs, 0.1 g fat. The same 100 g carries 5.1 g of sugar. The energy comes from a mix of carbs, fat, and protein.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup | 245 g | 83 kcal |
| 1 quart | 980 g | 333 kcal |
| 100 g | 100 g | 34 kcal |
All the protein and calcium of whole milk at about 83 calories a cup. On the energy-density scale, 34 kcal per 100 g puts skim milk at the very low end. Protein density is strong: about 10.0 g of protein per 100 calories.
A typical serving (1 cup, 245 g) has about 83 calories, and 100 g has 34 kcal. Calories scale with weight, so double the portion means double the number.
There are 3.4 g of protein in 100 g of skim milk, which works out to about 8.3 g per serving (1 cup). It contributes meaningful protein, though most of the calories come from elsewhere.
There are 5 g of carbohydrate per 100 g of skim milk, or about 12 g in 1 cup (245 g).
Every value on this page comes from USDA FoodData Central, entry 171269 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
Snap a photo of your plate in Joules and the calories and macros for skim milk are logged for you.
Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 171269 (SR Legacy). Serving calories are computed from the per-100-g values.
