KFC · Fountain Drinks & Kids Drinks · United States
Mug Root Beer Calories & Nutrition
A 20 fl oz Mug Root Beer from KFC has 240 calories, 0g protein, 65g carbs, 0g fat and 65g sugar.
Key facts
Calories
240 kcal
Protein
0g
Carbohydrates
65g
Sodium
75 mg
It ranks #18 of 28 fountain drinks & kids drinks from lowest to highest calories, with 58% more calories than the category average of 152 kcal.
Add to the KFC calculatorMug Root Beer nutrition by size
Going from 30 fl oz to 12 fl oz saves 220 kcal.
Ingredients & allergens
Allergens:
No major allergens listed.
Allergens shown in capitals as declared by KFC. 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 fl oz Mug Root Beer?
A 20 fl oz Mug Root Beer from KFC has 240 calories, 0g protein, 65g carbs, 0g fat and 65g 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?
12 fl oz: 140 kcal; 16 fl oz: 190 kcal; 20 fl oz: 240 kcal; 30 fl oz: 360 kcal.
How much sugar is in Mug Root Beer?
65g of total sugars, of which 0g are added sugars.
Is Mug Root Beer dairy-free?
The official allergen information lists no milk in the standard build. KFC uses shared equipment, so traces are possible.
Source: KFC Full Nutrition Guide (official table on kfc.com/full-nutrition-guide, hosted by Nutritionix) (last updated 2026-10-02, retrieved 2026-10-16); KFC item nutrition labels: ingredients & allergens (same official tool) (retrieved 2026-10-16); KFC Nutrition Calculator (kfc.com/nutrition): Sweet Tea and Unsweet Tea (dataset 6826-0-1788988553, retrieved 2026-10-16); KFC Food Allergies & Sensitivities (retrieved 2026-10-16); kfc.com menu (product descriptions, combo contents and default picks) (retrieved 2026-10-16). Data checked 2026-10-16. KFC is a trademark of its owner; Fast Food Calc is independent and not affiliated with KFC.