Calories in 1/2 Cup of Oats
1/2 cup of oats (41 g) has 153 calories. That is 8% of a 2,000 calorie diet.
The calories come from 5.3 g of protein, 2.6 g of fat and 27 g of carbohydrates, a split of 14% protein, 15% fat and 71% carbs. For comparison, 1/4 cup of oats has 77 and 3/4 cup of oats has 230 calories. Burning 153 calories takes about 27 minutes of brisk walking or 12 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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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 1/2 cup of oats?
1/2 cup of oats weighs about 41 g and has 153 calories.
How much protein is in 1/2 cup of oats?
1/2 cup of oats has 5.3 g of protein, which is 11% of the 50 g Daily Value.
How many carbs are in 1/2 cup of oats?
1/2 cup of oats has 27 g of carbohydrates, including 4.1 g of fiber and 0.4 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.