Carbs in Light Beer
How many carbs are in light beer?
Light Beer has 1.6g net carbs per 100g — 1.6g total carbs minus 0g fiber — plus 0.2g protein, 0g fat, and 29 calories. 1 can (12 fl oz) works out to about 5.7g net carbs and 103 calories. That makes light beer very low in net carbs and lower than the typical drink, which averages about 21.1g net carbs per 100g. At this carb count, light beer 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 June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is light beer keto-friendly?
Yes — light beer is keto-friendly. It has 1.6g net carbs per 100g (1.6g total carbs − 0g fiber). A typical serving — 1 can (12 fl oz) — is about 5.7g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other drinks and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 can (12 fl oz) | 5.7g | 5.7g | 0.7g | 103 |
| 100 g (3.5 oz) | 1.6g | 1.6g | 0.2g | 29 |
| 1 oz (28 g) | 0.4g | 0.4g | 0.1g | 8 |
How many calories are in light beer?
Light Beer has 29 calories per 100g. 1 can (12 fl oz) has about 103 calories. That's alongside 0.2g protein, 0g fat, and 1.6g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 29 |
| Total carbs | 1.6g |
| Net carbs | 1.6g |
| Fiber | 0g |
| Sugar | 0.1g |
| Sugar alcohols | 0g |
| Protein | 0.2g |
| Fat | 0g |
| Sodium | 4mg |
| Potassium | 21mg |
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 light beer?
- Light Beer has 1.6g of total carbs and 1.6g of net carbs per 100 grams.
- How many net carbs are in light beer?
- Light Beer has 1.6g of net carbs per 100 grams (total carbs 1.6g minus 0g fiber).
- Is light beer keto-friendly?
- Yes — light beer is keto-friendly. It has 1.6g net carbs per 100g (1.6g total carbs − 0g fiber). A typical serving — 1 can (12 fl oz) — is about 5.7g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other drinks and meals.
- How many calories are in light beer?
- Light Beer has 29 calories per 100 grams.
- How many carbs are in 1 can (12 fl oz) of light beer?
- 1 can (12 fl oz) of light beer (355g) has about 5.7g net carbs, 5.7g total carbs, and 103 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.