A standard 12 fl oz (355ml) regular beer has about 13 grams of carbohydrate, according to USDA FoodData Central. Light beers run 2 to 6 grams, and hoppy craft IPAs or stouts can run 15 to 25 grams in the same size can.
Carbs in a 12 oz Beer, by Type
| Beer type | Carbs (12 oz) | Calories | Example |
|---|---|---|---|
| Ultra-light lager | 2 to 3g | 95 to 100 cal | Michelob Ultra (2.6g) |
| Light lager | 3 to 5g | 95 to 105 cal | Miller Lite (3.2g), Coors Light (5g) |
| Standard American lager | 10 to 13g | 140 to 155 cal | Budweiser (10.2g), Corona (14.1g) |
| European pale lager | 11 to 12g | 140 to 150 cal | Heineken (11.5g) |
| Craft IPA | 15 to 20g | 180 to 220 cal | Varies widely by brewery |
| Stout | About 10g | 125 to 210 cal | Guinness Draught runs lower than most stouts |
| Non-alcoholic beer | 10 to 30g | 50 to 90 cal | Often higher carbs than regular beer, since less sugar converts to alcohol |
Source: USDA FoodData Central and manufacturer nutrition panels.
Two Real Examples, Side by Side
A light lager and a standard lager from the same shelf show the gap clearly.
Why Beer Has Carbs At All
Beer’s carbs come from residual sugars and starches that did not fully convert to alcohol during fermentation. Brewers mash grain to release fermentable sugar, yeast eats most of that sugar and turns it into alcohol and CO2, but not all of it gets consumed. Light beers use extra enzymes during the mash to break down more of the starch before fermentation even starts, which is why they finish with fewer residual carbs, not because the brewer removes carbs afterward.
One thing that surprises people: non-alcoholic beer often has more carbs than regular beer, not less. Fermentation is what converts sugar into alcohol, so a beer brewed to stay under 0.5% ABV usually keeps more of its original sugar intact.
If you are tracking alcohol content alongside carbs, our ABV Equation guide and Beers by ABV chart break down strength the same way this page breaks down carbs.
How to Cut Carbs Without Losing All the Flavor
If counting carbs matters but you still want actual beer flavor, the biggest lever is style, not brand loyalty. Session IPAs and dry-hopped light lagers keep a hoppier character while landing closer to 3 to 5g of carbs, since brewers use the same enzyme trick as mainstream light beers, just applied to a more flavorful base recipe. Hard seltzers, technically not beer but often shelved next to it, run even lower, typically 1 to 2g of carbs, because they ferment cane sugar rather than malted grain.
What does not help: switching brands within the same style. A Corona (14.1g) and a Heineken (11.5g) are both standard pale lagers, and the carb difference between them is small compared to the gap between either one and a genuine light lager.
FAQs
How many carbs are in a light beer?
Most American light lagers run 2 to 6 grams of carbs per 12 oz serving. Michelob Ultra (2.6g) and Miller Lite (3.2g) are among the lowest.
Is beer keto-friendly?
Light beer at 2 to 4g of net carbs per can can fit into a strict keto day. Regular beer at 10 to 13g uses a much larger share of a typical 20 to 30g daily carb limit.
Do IPAs really have more carbs than lagers?
Yes, typically. Many craft IPAs run 15 to 20g of carbs per 12 oz, compared to 10 to 13g for standard lagers, because of their higher starting gravity and hop-forward, less-attenuated recipes.
Does non-alcoholic beer have more carbs than regular beer?
Often yes. Because little to no fermentation happens, the sugars used to build flavor are not converted into alcohol, so many NA beers carry 10 to 30g of carbs, more than a standard lager.
