Calories in oatmeal

USDA data · Updated October 12, 2026

Oatmeal (1 cup, 234 g) has 166 calories, with 5.9 g of protein, 28.1 g of carbohydrates and 3.6 g of fat. Per 100 g, that's 71 kcal.

Values are for Cereals, oats, regular and quick, unenriched, cooked with water (includes boiling and microwaving), without salt. Amounts vary with size, variety and preparation.

Oatmeal

Per 1 cup (234 g)


Calories166

Protein5.9 g
Carbohydrates28.1 g
   Fiber4 g
   Sugars0.6 g
Fat3.6 g
Sodium9 mg

Source: USDA FoodData Central.

Calories in oatmeal by serving

ServingWeightCaloriesProteinCarbsFat
100 g100 g712.5 g12 g1.5 g
1 cup234 g1665.9 g28.1 g3.6 g
1 tbsp15 g100.4 g1.8 g0.2 g
¾ cup175 g1244.4 g21 g2.7 g
1 oz28 g200.7 g3.4 g0.4 g

Where the calories come from

Protein 14%Carbs 67%Fat 19%

Oatmeal has a low energy density (0.7 kcal per gram). It provides 3.6 g of protein per 100 kcal.

Bread, rice & grains: calories compared

Per 100 gCaloriesProteinCarbsFat
Oatmeal712.5 g12 g1.5 g
Couscous1123.8 g23.2 g0.2 g
Quinoa1204.4 g21.3 g1.9 g
Brown rice1232.7 g25.6 g1 g
White rice1302.7 g28.2 g0.3 g
Pasta (cooked)1585.8 g30.9 g0.9 g
English muffin2357.7 g46 g1.8 g
Whole-wheat bread25212.4 g42.7 g3.5 g
Bagel26410.6 g52.4 g1.3 g
White bread2668.8 g49.4 g3.3 g
Flour tortilla3068.2 g49.4 g8 g
Rolled oats (dry)37913.2 g67.7 g6.5 g

Log it in seconds

In C for Calories, photograph your plate and oatmeal is estimated along with everything else on it, or search for it and enter the amount in grams. For packaged versions, scan the barcode to use the label.

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, SR Legacy, FDC ID 173905. Calories are rounded to the nearest whole number and nutrients to one decimal place.

FAQ

Frequently asked questions

How many calories are in oatmeal?

166 calories in 1 cup (234 g), or 71 calories per 100 g.

How much protein is in oatmeal?

5.9 g of protein in 1 cup (234 g) (2.5 g per 100 g).

How many carbs are in oatmeal?

28.1 g of carbohydrates in 1 cup (234 g), including 4 g of fiber.