Carbs in Sourdough Bread
Sourdough Bread (per 100 g) contains 44.1g total carbs, 42.3g net carbs, 0g fat, 7g protein, and 212 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

42.3g
Net carbs
44.1g
Total carbs
1.8g
Fiber
7g
Protein
0g
Fat
212
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 slice | 20.3g | 21.2g | 3.4g | 102 |
| 100 g (3.5 oz) | 42.3g | 44.1g | 7g | 212 |
| 1 oz (28 g) | 11.8g | 12.3g | 2g | 59 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 212 |
| Total carbs | 44.1g |
| Net carbs | 42.3g |
| Fiber | 1.8g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 7g |
| Fat | 0g |
| Sodium | 23mg |
| Potassium | 0mg |
Source: Open Food Facts (Izzio). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in sourdough bread?
- Sourdough Bread has 44.1g of total carbs and 42.3g of net carbs per 100 grams.
- How many net carbs are in sourdough bread?
- Sourdough Bread has 42.3g of net carbs per 100 grams (total carbs 44.1g minus 1.8g fiber).
- Is sourdough bread keto-friendly?
- Sourdough Bread has 42.3g 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 sourdough bread?
- Sourdough Bread has 212 calories per 100 grams.
- How many carbs are in 1 slice of sourdough bread?
- 1 slice of sourdough bread (48g) has about 20.3g net carbs, 21.2g total carbs, and 102 calories.



