Updated October 2026
Budweiser is the original, full-strength American lager; Bud Light is its lighter version. Budweiser is 5.0% ABV with about 145 calories per 12-ounce serving. Bud Light is 4.2% ABV with 110 calories and fewer carbohydrates. Both are made by Anheuser-Busch, and both are crisp, pale lagers brewed with barley malt, rice and hops. Budweiser tastes fuller and slightly sweeter and maltier. Bud Light tastes thinner, cleaner and more watery.
Bud Light vs Budweiser at a Glance
| Per 12 oz | Budweiser | Bud Light |
|---|---|---|
| Alcohol | 5.0% ABV | 4.2% ABV |
| Calories | About 145 | 110 |
| Carbohydrates | About 11 g | 6.6 g |
| Introduced | 1876 | 1982 (as Budweiser Light) |
| Style | American lager | American light lager |
| Brewer | Anheuser-Busch | Anheuser-Busch |
| US standard drinks | About 1.0 | About 0.85 |
Where Each Beer Came From
Budweiser dates to 1876, when Adolphus Busch introduced it in St. Louis. It became one of the first American beers sold nationally, helped by pasteurization and refrigerated rail cars, and it is still the flagship of Anheuser-Busch, now part of AB InBev.
Bud Light arrived in 1982, first sold as Budweiser Light, as lower-calorie beers took off in the US. It went on to become one of the best-selling beers in the country for decades. For the full family of brands, see what beers Anheuser-Busch makes.
How They Differ in the Brewhouse
Both beers start from the same building blocks: barley malt, rice, hops, water and yeast. Rice is part of what gives both their pale color and crisp, light body. Anheuser-Busch has long described Budweiser as brewed with up to 30% rice alongside barley malt.
The difference is in how much fermentable material goes in and how fully it ferments. A light lager uses a recipe and process that leave less alcohol and fewer residual carbohydrates in the finished beer. Less alcohol and fewer carbs mean fewer calories, and also a lighter body and less malt flavor. That is why Bud Light tastes thinner than Budweiser.
How They Taste
Budweiser
Budweiser is light by most beer standards, but fuller than Bud Light. Expect a crisp, clean body, a gentle sweet-malt and grainy flavor, a faint fruity note, very low bitterness and a short, dry finish.
Bud Light
Bud Light is lighter still: very pale, highly carbonated, with only a hint of grain and almost no bitterness. Its main appeal is refreshment and drinkability rather than flavor. Served ice cold, it is designed to be easy to drink over a long afternoon.
Calories and Carbs
If you are counting calories, Bud Light saves about 35 calories and roughly 4 grams of carbohydrate per 12-ounce beer compared with Budweiser. Over a six-pack, that adds up to about 210 calories. Most of the difference comes from alcohol: alcohol carries about 7 calories per gram, so the lower ABV of Bud Light accounts for much of its calorie savings.
For even lighter options, Anheuser-Busch also makes beers such as Michelob Ultra. See Michelob Light vs Ultra and our list of the best low-calorie alcoholic drinks in a can.
Which Is Stronger?
Budweiser is stronger. A US standard drink contains 14 grams of alcohol, the amount in 12 ounces of 5% beer. So one 12-ounce Budweiser is about one standard drink, and one 12-ounce Bud Light is about 0.85. Five Bud Lights contain roughly the same alcohol as four Budweisers. For more on serving math, see how many beers it takes to feel the effects.
Which Should You Choose?
- For more flavor: Budweiser. It has more body and malt character.
- For fewer calories and a lighter feel: Bud Light.
- For a long day outdoors: Bud Light’s lower strength makes it easier to pace.
- With food: Budweiser stands up a little better to burgers, wings and barbecue.
- In a michelada or beer cocktail: either works; Budweiser adds a bit more backbone.
Other Comparisons
Curious how other big American lagers compare? See Miller High Life vs Miller Lite, which follows the same full-strength vs light pattern, and dark beer vs light beer for how color relates to flavor and strength.
Frequently Asked Questions
Is Bud Light just watered-down Budweiser?
No. Bud Light is brewed as its own beer with a recipe and process designed to produce less alcohol and fewer carbohydrates. It is not Budweiser with water added.
Does Bud Light have less alcohol than Budweiser?
Yes. Bud Light is 4.2% ABV and Budweiser is 5.0% ABV.
Who makes Bud Light and Budweiser?
Both are made by Anheuser-Busch, the US arm of AB InBev.
Which has more calories?
Budweiser, with about 145 calories per 12 ounces, compared with 110 for Bud Light.
More in our Beer Guide.
Sources
- Anheuser-Busch brand information: Budweiser 5.0% ABV, introduced 1876 by Adolphus Busch, brewed with up to 30% rice; Bud Light 4.2% ABV, 110 calories per 12 oz, introduced 1982 as Budweiser Light.
- Bud Light 6.6 g carbohydrate (budlight.com) and Budweiser calories and carbohydrates per 12 oz, as compiled by Medical News Today.
- NIAAA: definition of a US standard drink (14 grams of pure alcohol; 12 oz of 5% beer).