Carbs in Bun
Bun (per 100 g) contains 39.8g total carbs, 38.6g net carbs, 7.6g fat, 11.2g protein, and 273 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
38.6g
Net carbs
39.8g
Total carbs
1.2g
Fiber
11.2g
Protein
7.6g
Fat
273
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 38.6g | 39.8g | 11.2g | 273 |
| 1 oz (28 g) | 10.8g | 11.1g | 3.1g | 76 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 273 |
| Total carbs | 39.8g |
| Net carbs | 38.6g |
| Fiber | 1.2g |
| Sugar | 5.9g |
| Sugar alcohols | 0g |
| Protein | 11.2g |
| Fat | 7.6g |
| Sodium | 354mg |
| Potassium | 162mg |
Source: USDA FoodData Central (Survey (FNDDS)). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in bun?
- Bun has 39.8g of total carbs and 38.6g of net carbs per 100 grams.
- How many net carbs are in bun?
- Bun has 38.6g of net carbs per 100 grams (total carbs 39.8g minus 1.2g fiber).
- Is bun keto-friendly?
- Bun has 38.6g 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 bun?
- Bun has 273 calories per 100 grams.
