Calories in oats
Oats (½ cup, 40 g) has 152 calories, with 5.3 g of protein, 27.1 g of carbohydrates and 2.6 g of fat. Per 100 g, that's 379 kcal.
Values are for Cereals, oats, regular and quick, not fortified, dry. Amounts vary with size, variety and preparation.
Rolled oats (dry)
Per ½ cup (40 g)
Source: USDA FoodData Central.
Calories in oats by serving
| Serving | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 100 g | 100 g | 379 | 13.2 g | 67.7 g | 6.5 g |
| ½ cup | 40 g | 152 | 5.3 g | 27.1 g | 2.6 g |
| 1 cup | 81 g | 307 | 10.7 g | 54.8 g | 5.3 g |
| ⅓ cup | 27 g | 102 | 3.6 g | 18.3 g | 1.8 g |
| 1 oz | 28 g | 107 | 3.7 g | 19.2 g | 1.8 g |
Where the calories come from
Protein 14%Carbs 71%Fat 15%
Rolled oats (dry) has a medium energy density (3.8 kcal per gram). It provides 3.5 g of protein per 100 kcal.
Bread, rice & grains: calories compared
| Per 100 g | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Oatmeal | 71 | 2.5 g | 12 g | 1.5 g |
| Couscous | 112 | 3.8 g | 23.2 g | 0.2 g |
| Quinoa | 120 | 4.4 g | 21.3 g | 1.9 g |
| Brown rice | 123 | 2.7 g | 25.6 g | 1 g |
| White rice | 130 | 2.7 g | 28.2 g | 0.3 g |
| Pasta (cooked) | 158 | 5.8 g | 30.9 g | 0.9 g |
| English muffin | 235 | 7.7 g | 46 g | 1.8 g |
| Whole-wheat bread | 252 | 12.4 g | 42.7 g | 3.5 g |
| Bagel | 264 | 10.6 g | 52.4 g | 1.3 g |
| White bread | 266 | 8.8 g | 49.4 g | 3.3 g |
| Flour tortilla | 306 | 8.2 g | 49.4 g | 8 g |
| Rolled oats (dry) | 379 | 13.2 g | 67.7 g | 6.5 g |
Log it in seconds
In C for Calories, photograph your plate and oats 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 173904. Calories are rounded to the nearest whole number and nutrients to one decimal place.
FAQ
Frequently asked questions
How many calories are in oats?
152 calories in ½ cup (40 g), or 379 calories per 100 g.
How much protein is in oats?
5.3 g of protein in ½ cup (40 g) (13.2 g per 100 g).
How many carbs are in oats?
27.1 g of carbohydrates in ½ cup (40 g), including 4 g of fiber.