Arby's Barq's Root Beer Nutrition Facts

Arby's Barq's Root Beer Nutrition Facts
QUICK FACTS
180-450
calories
0g
fat
0g
protein
Updated: 12/15/2022

Arby's Barq's Root Beers contain between 180-450 calories, depending on your choice of size. The size with the fewest calories is the 16 oz Barq's Root Beer (180 calories), while the 40 oz Barq's Root Beer contains the most calories (450 calories).

Choose from the sizes below to see the full nutrition facts, ingredients and allergen information.