Calories in 1 Oz of Plain Cereal
1 oz of plain cereal (28 g) has 105 calories. That is 5% of a 2,000 calorie diet.
The calories come from 2.7 g of protein, 1.1 g of fat and 21 g of carbohydrates, a split of 10% protein, 10% fat and 80% carbs. For comparison, 2 oz of plain cereal has 210 calories. Burning 105 calories takes about 19 minutes of brisk walking or 8 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
Plain Cereal Calorie Calculator
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Plain Cereal calories by serving size
Common amounts of plain cereal with calories and macros. Tap a row for its full nutrition page.
Plain Cereal vs similar foods
Calories per 100 g compared with other grains, rice and pasta.
Plain Cereal: common questions
How many calories are in 1 oz of plain cereal?
1 oz of plain cereal weighs about 28 g and has 105 calories.
How much protein is in 1 oz of plain cereal?
1 oz of plain cereal has 2.7 g of protein, which is 5% of the 50 g Daily Value.
How many carbs are in 1 oz of plain cereal?
1 oz of plain cereal has 21 g of carbohydrates, including 2 g of fiber and 2 g of sugars.
How much plain cereal is 100 calories?
100 calories of plain cereal is 27 g, about 1 cup of plain cereal.
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Weights and conversions
Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2708482. Original description: Cereal, other, plain. Portion weights are USDA household measures.