Carbs in 1 Cup Oats

1 Cup Oats (per 100 g) contains 52.6g total carbs, 32.9g net carbs, 13.5g fat, 7.5g protein, and 395 calories.

Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

1 Cup Oats
32.9g
Net carbs
52.6g
Total carbs
19.7g
Fiber
7.5g
Protein
13.5g
Fat
395
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
100 g (3.5 oz)32.9g52.6g395
1 oz (28 g)9.2g14.7g111

Nutrition facts

NutrientAmount (per 100 g)
Calories395
Total carbs52.6g
Net carbs32.9g
Fiber19.7g
Sugar18.5g
Sugar alcohols0g
Protein7.5g
Fat13.5g
Sodium0mg
Potassium0mg

Source: Open Food Facts (Cup). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in 1 cup oats?
1 Cup Oats has 52.6g of total carbs and 32.9g of net carbs per 100 grams.
How many net carbs are in 1 cup oats?
1 Cup Oats has 32.9g of net carbs per 100 grams (total carbs 52.6g minus 19.7g fiber).
Is 1 cup oats keto-friendly?
1 Cup Oats has 32.9g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
How many calories are in 1 cup oats?
1 Cup Oats has 395 calories per 100 grams.

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