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

Sourdough Bread
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

ServingNet carbsTotal carbsCalories
1 slice20.3g21.2g102
100 g (3.5 oz)42.3g44.1g212
1 oz (28 g)11.8g12.3g59

Nutrition facts

NutrientAmount (per 100 g)
Calories212
Total carbs44.1g
Net carbs42.3g
Fiber1.8g
Sugar0g
Sugar alcohols0g
Protein7g
Fat0g
Sodium23mg
Potassium0mg

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.

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