Carbs in Walnuts (1/4 Cup)

Keto-friendly

How many carbs are in walnuts (1/4 cup)?

Walnuts (1/4 Cup) has 7.2g net carbs per 100g — 14.3g total carbs minus 7.1g fiber — plus 14.3g protein, 64.3g fat, and 679 calories. 1/4 cup (halves) works out to about 2g net carbs and 190 calories. With this carb count, walnuts (1/4 cup) fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Walnuts (1/4 Cup)
7.2g
Net carbs
14.3g
Total carbs
7.1g
Fiber
14.3g
Protein
64.3g
Fat
679
Calories

Values per 100 g.

Is walnuts (1/4 cup) keto-friendly?

Yes, in moderation

Yes, walnuts (1/4 cup) can fit a keto diet in moderate portions. It has 7.2g net carbs per 100g (14.3g total carbs − 7.1g fiber). A typical serving — 1/4 cup (halves) — is about 2g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.

Carbs by serving size

ServingNet carbsTotal carbsCalories
1/4 cup (halves)2g4g190
100 g (3.5 oz)7.2g14.3g679
1 oz (28 g)2g4g190

How many calories are in walnuts (1/4 cup)?

Walnuts (1/4 Cup) has 679 calories per 100g. 1/4 cup (halves) has about 190 calories. That's alongside 14.3g protein, 64.3g fat, and 7.2g net carbs per 100g.

Nutrition facts

NutrientAmount (per 100 g)
Calories679
Total carbs14.3g
Net carbs7.2g
Fiber7.1g
Sugar3.6g
Sugar alcohols0g
Protein14.3g
Fat64.3g
Sodium0mg
Potassium464mg

Source: Manufacturer-reported values (snacks-sweets). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in walnuts (1/4 cup)?
Walnuts (1/4 Cup) has 14.3g of total carbs and 7.2g of net carbs per 100 grams.
How many net carbs are in walnuts (1/4 cup)?
Walnuts (1/4 Cup) has 7.2g of net carbs per 100 grams (total carbs 14.3g minus 7.1g fiber).
Is walnuts (1/4 cup) keto-friendly?
Yes, walnuts (1/4 cup) can fit a keto diet in moderate portions. It has 7.2g net carbs per 100g (14.3g total carbs − 7.1g fiber). A typical serving — 1/4 cup (halves) — is about 2g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.
How many calories are in walnuts (1/4 cup)?
Walnuts (1/4 Cup) has 679 calories per 100 grams.
How many carbs are in 1/4 cup (halves) of walnuts (1/4 cup)?
1/4 cup (halves) of walnuts (1/4 cup) (28g) has about 2g net carbs, 4g total carbs, and 190 calories.

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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.