Calories in
beverages, carbonated, root beer
41 kcal per 100 g Beverages, carbonated, root beer contains 41 calories per 100 grams, or about 13 calories per fl oz. Per 100 g it provides 0.0 g protein, 10.6 g carbohydrate and 0.0 g fat.
By calories that splits 100% carbohydrate, 0% protein, 0% fat.
Calories in a typical serving
Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.
| Serving | Grams | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 fl oz | 30.8 g | 13 | 0.0 g | 3.3 g | 0.0 g |
| 1 can or bottle (16 fl oz) | 493.0 g | 202 | 0.0 g | 52.3 g | 0.0 g |
| 1 can or bottle (12 fl oz) | 370.0 g | 152 | 0.0 g | 39.2 g | 0.0 g |
Full nutrition, per 100 g and per fl oz
| Nutrient | Per 100 g | Per fl oz |
|---|---|---|
| Energy | 41 kcal | 13 kcal |
| Protein | 0.0 g | 0.0 g |
| Total fat | 0.0 g | 0.0 g |
| Saturated fat | 0.0 g | 0.0 g |
| Carbohydrate | 10.6 g | 3.3 g |
| Fibre | 0.0 g | 0.0 g |
| Sugars | 10.6 g | 3.3 g |
| Sodium | 13.0 mg | 4.0 mg |
| Potassium | 1.0 mg | 0.3 mg |
| Calcium | 5.0 mg | 1.5 mg |
| Iron | 0.1 mg | 0.0 mg |
| Vitamin C | 0.0 mg | 0.0 mg |
| Vitamin A | 0.0 µg | 0.0 µg |
| Cholesterol | 0.0 mg | 0.0 mg |
| Water | 89.3 g | 27.5 g |
USDA FoodData Central, SR Legacy (FDC ID 171871). A dash means the nutrient was not measured for this item, which is not the same as zero.
How beverages, carbonated, root beer compares
Among the 86 beverages items on this site, beverages, carbonated, root beer ranks 70 of 86 by calorie density, against a category average of 116 kcal per 100 g — so it is about 65% less calorie-dense than typical for its group.
It carries 0 g of protein per 100 calories, so it is not a meaningful protein source.
To burn off one fl oz (13 kcal), a 70 kg adult would walk for roughly 3 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.
Questions
How many calories are in beverages, carbonated, root beer?
Beverages, carbonated, root beer contains 41 calories per 100 g, which works out to about 13 calories per fl oz. It also provides 0.0 g of protein, 10.6 g of carbohydrate and 0.0 g of fat per 100 g.
What is the macro breakdown of beverages, carbonated, root beer?
By calories, beverages, carbonated, root beer is roughly 100% carbohydrate, 0% protein and 0% fat. That makes it a predominantly carbohydrate-based food.
How long does it take to burn off a fl oz?
About 3 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.
Is this figure exact for the beverages, carbonated, root beer I bought?
No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.
Similar foods
Closest in calorie density within beverages.
Source: USDA FoodData Central, SR Legacy — public domain. Full USDA description: "Beverages, carbonated, root beer". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.