Calories in Oat Milk

108kcal per 1 cup (240 g)

45 kcal per 100 g · about 5% of a 2,000-kcal day

Oat milk is creamy enough to have won over coffee shops, at about 108 calories a cup. It carries more carbs than other plant milks, which is what gives it that body.

Oat Milk nutrition facts

NutrientPer 100 gPer 1 cup
Calories45 kcal108 kcal
Protein1.2 g2.9 g
Carbs6.7 g16.1 g
Fat1.5 g3.6 g
Fiber0.8 g1.9 g
Sugar4 g9.6 g

Where the calories come from

Oat Milk calories by serving size

ServingCaloriesProteinCarbsFat
1 oz (28 g)13 kcal0.3 g1.9 g0.4 g
50 g23 kcal0.6 g3.4 g0.8 g
100 g45 kcal1.2 g6.7 g1.5 g
200 g90 kcal2.4 g13.4 g3 g
1 cup (240 g)108 kcal2.9 g16.1 g3.6 g
250 g113 kcal3 g16.8 g3.8 g

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Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.