Taco Bell · Fountain Drinks & Coffee · United States
Mug Root Beer Calories & Nutrition
A 20 oz Mug Root Beer from Taco Bell has 240 calories, 0g protein, 64g carbs, 0g fat and 63g sugar.
A nostalgic beverage known for its rich foam, unique aroma, and ice-cold refreshment.
Key facts
Calories
240 kcal
Protein
0g
Carbohydrates
64g
Sodium
95 mg
It ranks #12 of 19 fountain drinks & coffee from lowest to highest calories, with 70% more calories than the category average of 142 kcal.
Add to the Taco Bell calculatorMug Root Beer nutrition by size
Going from 30 oz to 16 oz saves 170 kcal.
Ingredients & allergens
Allergens:
No major allergens listed.
Allergens shown in capitals as declared by Taco Bell. Recipes change and items are made on shared equipment, so always check in store if you have an allergy.
Lower-calorie alternatives
Mug Root Beer: common questions
How many calories are in a 20 oz Mug Root Beer?
A 20 oz Mug Root Beer from Taco Bell has 240 calories, 0g protein, 64g carbs, 0g fat and 63g sugar. That is 12% of the 2,000 kcal daily value for an average adult.
How many calories are in each size of Mug Root Beer?
16 oz: 190 kcal; 20 oz: 240 kcal; 30 oz: 360 kcal.
How much sugar is in Mug Root Beer?
63g of total sugars, of which 63g are added sugars.
Is Mug Root Beer dairy-free?
The official allergen information lists no milk in the standard build. Taco Bell uses shared equipment, so traces are possible.
Source: Taco Bell Full Nutrition Information (official table on tacobell.com/nutrition/info, hosted by Nutritionix) (last updated 2026-10-15, retrieved 2026-10-16); Taco Bell item nutrition labels: ingredients & allergens (same official tool) (retrieved 2026-10-16); Taco Bell Allergen Information (retrieved 2026-10-16); tacobell.com national menu & product pages (menu scope, descriptions, combo contents) (retrieved 2026-10-16). Data checked 2026-10-16. Taco Bell is a trademark of its owner; Fast Food Calc is independent and not affiliated with Taco Bell.