Carbs in 1 Cup All Purpose Flour

How many carbs are in 1 cup all purpose flour?

1 Cup All Purpose Flour — 1 cup (125g) — has 92g net carbs: 95.4g total carbs minus 3.4g fiber, plus 12.9g protein, 1.3g fat, and 455 calories. Per 100g that is 73.6g net carbs (76.3g total carbs, 2.7g fiber) and 364 calories. That makes 1 cup all purpose flour high in net carbs and higher than the typical breads and grain, which averages about 44.4g net carbs per 100g. At this carb count, 1 cup all purpose flour is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.

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Last updated September 8, 2026 · Compiled by the CarbMeNot Team

1 Cup All Purpose Flour
92g
Net carbs
95.4g
Total carbs
3.4g
Fiber
12.9g
Protein
1.3g
Fat
455
Calories

Values per 1 cup (125g); per 100 g: 73.6g net carbs, 364 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.

Is 1 cup all purpose flour keto-friendly?

Not really

1 Cup All Purpose Flour is generally not keto-friendly. 1 cup (125g) is 92g net carbs (95.4g total carbs − 3.4g fiber); per 100g that is 73.6g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.

Carbs by serving size

ServingNet carbsTotal carbsCalories
1 cup92g95.4g455
100 g (3.5 oz)73.6g76.3g364
1 oz (28 g)20.6g21.4g102

How many calories are in 1 cup all purpose flour?

1 Cup All Purpose Flour — 1 cup (125g) — has 455 calories, with 12.9g protein, 1.3g fat, and 92g net carbs. Per 100g: 364 calories and 73.6g net carbs.

Nutrition facts

NutrientAmount (per 100 g)
Calories364
Total carbs76.3g
Net carbs73.6g
Fiber2.7g
Sugar0.3g
Sugar alcohols0g
Protein10.3g
Fat1g
Sodium2mg
Potassium107mg

Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in 1 cup all purpose flour?
1 Cup All Purpose Flour (1 cup, 125g) has 95.4g of total carbs and 92g of net carbs. Per 100 grams: 76.3g total, 73.6g net.
How many net carbs are in 1 cup all purpose flour?
1 Cup All Purpose Flour has 92g of net carbs per 1 cup (125g) — 95.4g total carbs minus 3.4g fiber.
Is 1 cup all purpose flour keto-friendly?
1 Cup All Purpose Flour is generally not keto-friendly. 1 cup (125g) is 92g net carbs (95.4g total carbs − 3.4g fiber); per 100g that is 73.6g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
How many calories are in 1 cup all purpose flour?
1 Cup All Purpose Flour (1 cup, 125g) has 455 calories; that is 364 calories per 100 grams.

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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.