Carbs in Oatmeal 1 Cup
Oatmeal 1 Cup (per 100 g) contains 64.6g total carbs, 48.5g net carbs, 10g fat, 4g protein, and 365 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

48.5g
Net carbs
64.6g
Total carbs
16.1g
Fiber
4g
Protein
10g
Fat
365
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 48.5g | 64.6g | 4g | 365 |
| 1 oz (28 g) | 13.6g | 18.1g | 1.1g | 102 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 365 |
| Total carbs | 64.6g |
| Net carbs | 48.5g |
| Fiber | 16.1g |
| Sugar | 32.1g |
| Sugar alcohols | 0g |
| Protein | 4g |
| Fat | 10g |
| Sodium | 562mg |
| Potassium | 274mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log oatmeal 1 cup in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
Frequently asked questions
- How many carbs are in oatmeal 1 cup?
- Oatmeal 1 Cup has 64.6g of total carbs and 48.5g of net carbs per 100 grams.
- How many net carbs are in oatmeal 1 cup?
- Oatmeal 1 Cup has 48.5g of net carbs per 100 grams (total carbs 64.6g minus 16.1g fiber).
- Is oatmeal 1 cup keto-friendly?
- Oatmeal 1 Cup has 48.5g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
- How many calories are in oatmeal 1 cup?
- Oatmeal 1 Cup has 365 calories per 100 grams.



