Romaine Lettuce Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 cup shredded (47g); per 100 g: 2.2g net carbs, 17 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in romaine lettuce?
Romaine Lettuce — 1 cup shredded (47g) — has 1g net carbs: 2g total carbs minus 1g fiber, plus 1g protein, 0g fat, and 8 calories. Per 100g that is 2.2g net carbs (4.3g total carbs, 2.1g fiber) and 17 calories. That makes romaine lettuce very low in net carbs and lower than the typical vegetable, which averages about 17.9g net carbs per 100g. With this carb count, romaine lettuce fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is romaine lettuce keto-friendly?
Yes — romaine lettuce is keto-friendly. 1 cup shredded (47g) is 1g net carbs (2g total carbs − 1g fiber); per 100g that is 2.2g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 cup shredded | 1g | 2g | 1g | 8 |
| 100 g (3.5 oz) | 2.2g | 4.3g | 2.1g | 17 |
| 1 oz (28 g) | 0.6g | 1.2g | 0.6g | 5 |
How many calories are in romaine lettuce?
Romaine Lettuce — 1 cup shredded (47g) — has 8 calories, with 1g protein, 0g fat, and 1g net carbs. Per 100g: 17 calories and 2.2g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 17 |
| Total carbs | 4.3g |
| Net carbs | 2.2g |
| Fiber | 2.1g |
| Sugar | 2.1g |
| Sugar alcohols | 0g |
| Protein | 2.1g |
| Fat | 0g |
| Sodium | 8mg |
| Potassium | 247mg |
Source: Manufacturer-reported values (vegetables). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in romaine lettuce?
- Romaine Lettuce (1 cup shredded, 47g) has 2g of total carbs and 1g of net carbs. Per 100 grams: 4.3g total, 2.2g net.
- How many net carbs are in romaine lettuce?
- Romaine Lettuce has 1g of net carbs per 1 cup shredded (47g) — 2g total carbs minus 1g fiber.
- Is romaine lettuce keto-friendly?
- Yes — romaine lettuce is keto-friendly. 1 cup shredded (47g) is 1g net carbs (2g total carbs − 1g fiber); per 100g that is 2.2g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
- How many calories are in romaine lettuce?
- Romaine Lettuce (1 cup shredded, 47g) has 8 calories; that is 17 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.