Calories in Soy Milk (unsweetened)

80kcal per 1 cup (243 g)

33 kcal per 100 g · about 4% of a 2,000-kcal day

Soy milk is the plant milk that comes closest to dairy on protein, at about 80 calories a cup. That protein is why it froths and satisfies like cow's milk.

Soy Milk (unsweetened) nutrition facts

NutrientPer 100 gPer 1 cup
Calories33 kcal80 kcal
Protein3.3 g8 g
Carbs1.8 g4.4 g
Fat1.8 g4.4 g
Fiber0.6 g1.5 g
Sugar1 g2.4 g

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