Carbs in Walnuts (1/4 Cup)
Keto-friendlyHow 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.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Values per 100 g.
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.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1/4 cup (halves) | 2g | 4g | 4g | 190 |
| 100 g (3.5 oz) | 7.2g | 14.3g | 14.3g | 679 |
| 1 oz (28 g) | 2g | 4g | 4g | 190 |
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
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 679 |
| Total carbs | 14.3g |
| Net carbs | 7.2g |
| Fiber | 7.1g |
| Sugar | 3.6g |
| Sugar alcohols | 0g |
| Protein | 14.3g |
| Fat | 64.3g |
| Sodium | 0mg |
| Potassium | 464mg |
Source: Manufacturer-reported values (snacks-sweets). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log walnuts (1/4 cup) in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
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.
Similar foods
CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.



