How many calories are in a Natural Light?
A 12 fl oz can of Natural Light carries 103 calories. That is the USDA figure for American light beer, which runs 29 calories per 100 g — one of the lightest numbers on most beer shelves and about a third below a regular beer. The carbohydrate line is 5.8 g, and there is almost no sugar in it.
You'd need to walk about 21 minutes to burn the 103 calories in a 12 fl oz can (354 g).
How long does it take to burn off Natural light?
A 12 fl oz can (354 g) is 103 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 103 kcal |
|---|---|
| Walking, brisk | 21 min |
| Cycling, moderate | 13 min |
| Swimming, moderate | 15 min |
| Jogging | 12 min |
| Weight training, moderate | 23 min |
Times are for a 155 lb adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (354 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Light beer quick facts
- Servings, from one ounce to a six-pack
- Low-carb, Bud Light and the higher-alcohol catch
- Where the calories actually come from
- How does light beer compare?
- Most popular light beer brands
- FAQs
Light beer quick facts
There is no USDA record filed under the Natural Light name, and there never will be one. Beer is regulated by the Alcohol and Tobacco Tax and Trade Bureau, not the FDA, so brewers are not required to file a Nutrition Facts panel — which is why the USDA Branded database, full of tens of thousands of packaged foods, holds no beer labels at all. The row that does the work here is SR Legacy 168749, "Alcoholic beverage, beer, light", the generic American light lager. Natural Light sits squarely inside that class.
The same numbers appear again in the FNDDS survey edition as record 2710617, "Beer, light." They are not two measurements; they are one measurement published twice, so nothing is gained by averaging them. Everything below scales from the SR Legacy row.
| Nutrient | Per 100 g | Per 12 fl oz can (354 g) | % Daily Value |
|---|---|---|---|
| Calories | 29 | 103 | — |
| Total fat | 0 g | 0.0 g | 0% |
| Saturated fat | 0 g | 0.0 g | 0% |
| Carbohydrate | 1.64 g | 5.8 g | 2% |
| Dietary fiber | 0 g | 0.0 g | 0% |
| Total sugars | 0.09 g | 0.3 g | — |
| Protein | 0.24 g | 0.8 g | 2% |
| Sodium | 4 mg | 14 mg | 1% |
% Daily Value is based on a 2,000-calorie diet.
Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Two rows you would expect are missing. There is no added sugars line because USDA does not publish added sugars for beer in the SR Legacy edition, and total sugars have no Daily Value of their own, which is why that cell reads as a dash. Cholesterol is 0 mg. Potassium is the one mineral worth a mention: 21 mg per 100 g, or 74 mg a can, which is 2% of the Daily Value. Sodium at 14 mg is small enough to ignore entirely — you would have to drink most of a case to reach even a tenth of the FDA Daily Value of 2,300 mg.
Servings, from one ounce to a six-pack
| Serving | Weight | Calories |
|---|---|---|
| 1 fl oz | 29.5 g | 9 kcal |
| 1 oz by weight | 28.4 g | 8 kcal |
| One can or bottle, 12 fl oz | 354 g | 103 kcal |
| One tall can, 16 fl oz | 472 g | 137 kcal |
| Six-pack, 6 × 12 fl oz | 2124 g | 616 kcal |
| Per 100 g | 100 g | 29 kcal |
Only two of those are USDA household measures: the 12 fl oz can and the fluid ounce. The tall can, the six-pack and the ounce by weight are our own arithmetic from the USDA 100 g figure, not USDA servings — 29 calories per 100 g multiplied out by weight.
The tall can is where most people lose track. Sixteen fluid ounces is 137 calories against 103 for the standard can, so four extra ounces cost 34 calories, roughly a third of a whole beer. Buy two tall cans instead of two regular ones and you have quietly added most of a third beer to the evening without opening one.
A six-pack is 616 calories, 2,124 g of liquid, 34.8 g of carbohydrate and 85 mg of sodium. That is a full meal's worth of energy with no protein, no fiber and no fat to slow it down, which is the practical reason light beer is easy to underestimate — nothing about it feels like eating.
Low-carb, Bud Light and the higher-alcohol catch
"Light" is a marketing word, not a fixed number. USDA publishes several rows inside the category, and they do not all land in the same place.
| Version | Per 100 g | Typical can | Calories |
|---|---|---|---|
| Light beer (the row above) | 29 kcal | 12 fl oz, 354 g | 103 kcal |
| Bud Light | 29 kcal | 12 fl oz, 354 g | 103 kcal |
| Budweiser Select | 28 kcal | 12 fl oz, 355 g | 99 kcal |
| Low-carb light beer | 27 kcal | 12 fl oz, 354 g | 96 kcal |
| Higher-alcohol light beer | 46 kcal | 12 fl oz, 356 g | 164 kcal |
| Hard seltzer | 24 kcal | 12 fl oz, 354 g | 85 kcal |
The two brand rows come from SR Legacy reference analyses rather than from a printed label, since no beer label exists in the USDA Branded set. On those numbers Bud Light is identical to generic light beer at 103 a can, and Budweiser Select comes in four calories under it. Nobody is winning or losing a diet on that gap.
Low-carb light beer is the interesting disappointment. It cuts carbohydrate hard — 0.73 g per 100 g against 1.64 g, or 2.6 g a can against 5.8 g — and saves a grand total of 7 calories. If you are tracking carbohydrate for a specific reason, that halving is real. If you are tracking calories, it is noise.
The row that actually moves is the higher-alcohol light beer at 46 calories per 100 g. A 12 fl oz can is 164 calories, 59% more than standard light beer, and it gets there with less carbohydrate, not more: 0.77 g per 100 g. That single comparison explains the whole category. Alcohol, not carbs, sets the price.
Where the calories actually come from
Look back at the label table and try to build 103 calories out of it. Carbohydrate is 5.8 g, protein is 0.8 g, fat is zero. Those rows cannot account for the total, and the shortfall is not a rounding error — it is the alcohol, which carries energy but never appears as a Nutrition Facts line because it is not a nutrient the panel reports.
This is why "low carb" and "low calorie" drift apart in beer the way they never do in bread or soda. The Dietary Guidelines for Americans treat calories from alcoholic beverages as calories that displace nutrient-dense food rather than add to it, and the arithmetic on this page shows why: a six-pack delivers 616 calories, 2% of the Daily Value for protein per can, and essentially nothing else.
Serving size is the other trap, and it is a definitional one. A standard drink in the United States, as CDC defines it, is 12 fluid ounces of regular beer at about 5% alcohol. A 16 oz tall can is more than one standard drink, and a 25 oz can is roughly two — but the pour still reads as "a beer" in your head and in most food logs. Counting containers instead of ounces is the single most common way light beer gets undercounted.
If you are watching sodium, beer is not your problem: 14 mg a can is trivial against the 2,300 mg Daily Value. If you are watching calories, the useful move is not switching brands within the light category — a four-calorie difference between Bud Light and Budweiser Select is not a strategy — but switching container size.
How does light beer compare?
| Drink | Per 100 g | US serving | Calories |
|---|---|---|---|
| Light beer | 29 kcal | 12 fl oz, 354 g | 103 kcal |
| Regular beer | 43 kcal | 12 fl oz, 354 g | 152 kcal |
| Hard seltzer | 24 kcal | 12 fl oz, 354 g | 85 kcal |
| Hard cider | 56 kcal | 12 fl oz, 354 g | 198 kcal |
Our take: light beer earns its name against regular beer and cider, and loses to hard seltzer. The gap that matters is the 49 calories between a light and a regular beer — across four drinks that is 196 calories, about the same as a whole cider. Hard seltzer is the only drink in this table lighter than light beer, and it wins by 18 calories a can, which is a smaller margin than its reputation suggests. Cider is the outlier: at 5.92 g of carbohydrate per 100 g it carries roughly three and a half times the carbohydrate of light beer, and nearly double the calories. If you want the lowest number in the fridge, it is seltzer. If you want beer to taste like beer and still count, light beer at 103 is a genuinely good deal — as long as it stays in a 12 oz can.
Most popular light beer brands in the United States
Ranked by how widely each product appears among foods sold in the United States, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each Nutrition Facts label, checked against USDA FoodData Central.
| Product | Calories (per 100 g) |
|---|---|
| Bud Light | 29 cal |
| Budweiser Select | 28 cal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.
Natural Light FAQs
How many calories are in a Natural Light?
103 calories in a 12 fl oz can. USDA has no record filed under the Natural Light name — beer labels sit with the TTB, not the FDA — so the number comes from the SR Legacy row for American light beer, 29 calories per 100 g, scaled to the 354 g can.
How many carbs are in a Natural Light?
5.8 g of carbohydrate in a 12 fl oz can, which is 2% of the FDA Daily Value. Only 0.3 g of that is sugar. Regular beer carries 12.6 g in the same size can, so light beer cuts the carbohydrate line by more than half.
How many calories in a 16 oz Natural Light?
137 calories for a 16 fl oz tall can, 34 more than the 12 fl oz can. That is our own arithmetic from the USDA 100 g figure, not a USDA serving: 472 g at 29 calories per 100 g. Four extra ounces cost about a third of a can.
How many calories in a six-pack of light beer?
616 calories for six 12 fl oz cans, 2,124 g in total, scaled by us from the USDA 100 g figure. That is a full meal's worth of energy in liquid form, with 34.8 g of carbohydrate and 85 mg of sodium across the six.
Is Natural Light lower in calories than Bud Light?
Not on USDA numbers: both land at 29 calories per 100 g and 103 per 12 fl oz can. The Bud Light row, fdc_id 169572, lists 1.3 g of carbohydrate per 100 g against 1.64 g for generic light beer, a difference of roughly 1 g a can.
Does light beer have sugar?
Barely: 0.09 g per 100 g, which works out to 0.3 g of total sugars in a 12 fl oz can. Fermentation consumes most of the sugar and leaves alcohol behind. USDA does not publish added sugars for beer, so that row is absent from the label table above.
Light beer vs hard seltzer: which has fewer calories?
Hard seltzer, by 18 calories a can: 85 against 103 for the same 12 fl oz pour, or 24 calories per 100 g against 29. The carbohydrate gap is smaller than people expect, 1.9 g versus 5.8 g, and neither drink carries any fat or fiber.
How much protein is in a beer?
0.8 g in a 12 fl oz light beer, 2% of the Daily Value, and 1.6 g in the same size regular beer. Beer is not a protein source in any useful sense. The number is real, but it is far too small to count toward a daily target.
Similar foods
- Tom yum soup — 191 cal per bowl
- Clementine — 35 cal per clementine
- Ceviche — 158 cal per cup
- Pomegranate — 72 cal for 1/2 cup arils
- Clam Chowder — 237 cal per cup
- Chinese Chicken and Broccoli — 206 cal per cup
Count it without the math
Point the camera at the can and BodyPal counts it for you, tall cans included.
