Foods

How many carbs are in cereal, o's, plain?

1 cup of cereal, o's, plain contains about 20.4g of carbohydrate, 17.2g net carbs after subtracting 3.2g of fiber, 3.7g of protein, and 112 calories.

1 cup contains 20.4g carbs 17.2g net carbs · 3.2g fiber · 3.7g protein · 112 cal

Carbs by portion size

PortionTotal carbsFiberNet carbs
1 cup (30g)20.4g3.2g17.2g
1 prepackaged single serving (30g)20.4g3.2g17.2g
100 grams (100g)67.9g10.5g57.4g

Net carbs in cereal, o's, plain

1 cup of cereal, o's, plain contains 17.2g of net carbs — total carbs (20.4g) minus dietary fiber (3.2g). Net carbs are the carbs your body actually digests and that raise blood glucose. See our guide to net carbs for how this calculation works and when to use it.

Full nutrition for cereal, o's, plain (per 100g)

Reference values from USDA FoodData Central (survey fndds dataset, fdcId 2343932). Values are per 100 grams.

Count carbs without typing

CarbZen scans any meal in 3 seconds with USDA-verified numbers. Three free scans every day, forever.

Download on the App Store

Frequently asked questions

How many carbs are in cereal, o's, plain?

1 cup of cereal, o's, plain contains about 20.4g of total carbohydrate. After subtracting 3.2g of fiber, the net carbs are about 17.2g.

How many net carbs are in cereal, o's, plain?

Net carbs in 1 cup of cereal, o's, plain are about 17.2g — that is total carbs (20.4g) minus dietary fiber (3.2g). See our net carbs explainer for the full calculation.

Is cereal, o's, plain good for diabetics?

Cereal, O's, plain contains carbohydrates that will raise blood glucose. Whether it fits your meal plan depends on the portion and your overall daily target. Most U.S. diabetes care teams use total carbs (not net) for insulin dosing — see our diabetes carb-counting guide.

Is cereal, o's, plain keto-friendly?

Whether cereal, o's, plain fits a keto plan depends on your daily net-carb budget (typically under 20–30g per day). One serving (1 cup) provides about 17.2g of net carbs.

More foods to explore

FoodsCarbs in cereal, o's, multigrainFoodsCarbs in cereal, oat branFoodsCarbs in cereal, o's, honey nutFoodsCarbs in cereal, oat bunchesFoodsCarbs in cereal, o's, flavoredFoodsCarbs in cereal, oat squaresFoodsCarbs in cereal, o'sFoodsCarbs in cereal, other

Foods with similar carb counts

67.9g carbs · per 100gBreadsticks, hard, whole wheat67.9g carbs · per 100gCookies, Puerto Rican style67.9g carbs · per 100gIcing, white67.9g carbs · per 100gFrostings, vanilla, creamy68g carbs · per 100gCandies, ROLO Caramels in Milk Chocolate67.9g carbs · per 100gCookie, chocolate, with icing or coating68g carbs · per 100gCookie, raisin68g carbs · per 100gCookie, sandwich, sugar free