How Many Calories Are in Oat Milk?

Unsweetened plain oat milk contains approximately 48 calories per 100 g.

A 240 g cup is about 115 calories. Sweetened and barista versions can be higher.

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Calories in oat milk by serving

These values use plain unsweetened refrigerated oat milk. Brand-specific products can differ substantially.

Serving Calories Weight
100 g 48 kcal 100 g
1/2 cup 58 kcal 120 g
1 cup 115 kcal 240 g
300 g 144 kcal 300 g

Calculate calories for your oat milk

Enter the amount of unsweetened oat milk you drink. For branded products, the package label is more precise.

240 g of unsweetened oat milk 115 kcal
Protein
1.9 g
Carbohydrates
12.2 g
Fat
6.5 g
Fiber
1.9 g

Calculated from approximately 48 calories per 100 g.

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Nutrition data and methodology

The reference uses USDA Foundation Food data for unsweetened plain refrigerated oat milk: approximately 0.8 g protein, 2.7 g fat and 5.1 g carbohydrate per 100 g.

Those macronutrients correspond to approximately 48 kcal per 100 g using standard energy factors.

Common questions about oat milk calories

How many calories are in oat milk?

Unsweetened plain refrigerated oat milk is approximately 48 calories per 100 g, or about 115 calories per 240 g cup.

How many calories are in one cup of oat milk?

A 240 g cup of the unsweetened plain reference used here is approximately 115 calories.

Why do oat milk calories vary by brand?

Brands use different amounts of oats, oil, sugar and stabilizers. Barista versions often contain more fat.

Does oat milk have much protein?

Usually not. The USDA unsweetened reference contains about 0.8 g of protein per 100 g.

How many calories should you eat per day?

Knowing the calories in one glass is useful. Knowing how that fits into your whole day is more useful.