Calories in 1/2 Cup of Instant Oatmeal
1/2 cup of instant oatmeal (120 g) has 82 calories. That is 4% of a 2,000 calorie diet.
The calories come from 2.7 g of protein, 1.6 g of fat and 16 g of carbohydrates, a split of 12% protein, 16% fat and 72% carbs. For comparison, 1/4 cup of instant oatmeal has 41 and 3/4 cup of instant oatmeal has 122 calories. Burning 82 calories takes about 15 minutes of brisk walking or 7 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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Instant Oatmeal calories by serving size
Common amounts of instant oatmeal with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 50g | 50 g | 34 | 1.1 g | 0.7 g | 6.6 g |
| 100g | 100 g | 68 | 2.3 g | 1.3 g | 13 g |
| 4 oz | 113 g | 77 | 2.6 g | 1.5 g | 15 g |
| 1/2 cup | 120 g | 82 | 2.7 g | 1.6 g | 16 g |
| 1 keurig cup | 170 g | 116 | 3.8 g | 2.2 g | 22 g |
| 200g | 200 g | 136 | 4.5 g | 2.6 g | 26 g |
| 1 cup | 240 g | 163 | 5.4 g | 3.1 g | 32 g |
| 2 keurig cups | 340 g | 231 | 7.7 g | 4.4 g | 45 g |
Instant Oatmeal vs similar foods
Calories per 100 g compared with other grains, rice and pasta.
Instant Oatmeal: common questions
How many calories are in 1/2 cup of instant oatmeal?
1/2 cup of instant oatmeal weighs about 120 g and has 82 calories.
How much protein is in 1/2 cup of instant oatmeal?
1/2 cup of instant oatmeal has 2.7 g of protein, which is 5% of the 50 g Daily Value.
How many carbs are in 1/2 cup of instant oatmeal?
1/2 cup of instant oatmeal has 16 g of carbohydrates, including 2.3 g of fiber and 0.3 g of sugars.
How much instant oatmeal is 100 calories?
100 calories of instant oatmeal is 147 g, about 3/4 keurig cup of instant oatmeal.
More about instant oatmeal
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Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2708387. Original description: Oatmeal, instant, plain, made with water, no added fat. Portion weights are USDA household measures.