Calories in 3 Oz of Oats
3 oz of oats (85 g) has 322 calories. That is 16% of a 2,000 calorie diet.
The calories come from 11 g of protein, 5.5 g of fat and 58 g of carbohydrates, a split of 14% protein, 15% fat and 71% carbs. For comparison, 2 oz of oats has 215 and 4 oz of oats has 430 calories. Burning 322 calories takes about 58 minutes of brisk walking or 26 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
Oats Calorie Calculator
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Oats calories by serving size
Common amounts of oats with calories and macros. Tap a row for its full nutrition page.
Oats vs similar foods
Calories per 100 g compared with other grains, rice and pasta.
Oats: common questions
How many calories are in 3 oz of oats?
3 oz of oats weighs about 85 g and has 322 calories.
How much protein is in 3 oz of oats?
3 oz of oats has 11 g of protein, which is 22% of the 50 g Daily Value.
How many carbs are in 3 oz of oats?
3 oz of oats has 58 g of carbohydrates, including 8.6 g of fiber and 0.8 g of sugars.
How much oats is 100 calories?
100 calories of oats is 26 g, about 1/4 cup of oats.
More about oats
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Weights and conversions
Source: USDA FoodData Central, SR Legacy. FDC ID 173904. Original description: Cereals, oats, regular and quick, not fortified, dry. Portion weights are USDA household measures.