Light Beer Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 can (12 fl oz), 355g; per 100 g: 1.6g net carbs, 29 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 light beer?
Light Beer — 1 can (12 fl oz), 355g — has 5.7g net carbs: 5.7g total carbs minus 0g fiber, plus 0.7g protein, 0g fat, and 103 calories. Per 100g that is 1.6g net carbs (1.6g total carbs, 0g fiber) and 29 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 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.
Is light beer keto-friendly?
Yes, light beer can fit a keto diet in moderate portions. 1 can (12 fl oz), 355g is 5.7g net carbs (5.7g total carbs − 0g fiber); per 100g that is 1.6g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other drinks and meals.
Keeping an eye on carbs in light beer?
Light Beer runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
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 — 1 can (12 fl oz), 355g — has 103 calories, with 0.7g protein, 0g fat, and 5.7g net carbs. Per 100g: 29 calories and 1.6g net carbs.
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 (1 can (12 fl oz), 355g) has 5.7g of total carbs and 5.7g of net carbs. Per 100 grams: 1.6g total, 1.6g net.
- How many net carbs are in light beer?
- Light Beer has 5.7g of net carbs per 1 can (12 fl oz), 355g — 5.7g total carbs minus 0g fiber.
- Is light beer keto-friendly?
- Yes, light beer can fit a keto diet in moderate portions. 1 can (12 fl oz), 355g is 5.7g net carbs (5.7g total carbs − 0g fiber); per 100g that is 1.6g 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 (1 can (12 fl oz), 355g) has 103 calories; that is 29 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.