Does Barq’s Root Beer Have Caffeine?

Question: Does Barq’s Root Beer contain caffeine?

Answer: Barq’s root beer does contain caffeine. There are 22 mg of caffeine in 12 flĀ oz of Barq’s root beer. However, Diet Barq’s root beer does not contain caffeine. Note that most root beer does not contain caffeine. Barq’s is one of few root beer products that contains caffeine.

Below we have provided the caffeine content for the various sizes of Barq’s root beer (regular and diet).

Caffeine in Barq’s Root Beer

Barq's ProductServing SizeCaffeine (mg)Caffeine(mg)/fl oz
Barq's Root Beer7.5 fl oz14 mg1.87 mg
Barq's Root Beer12 fl oz22 mg1.83 mg
Barq's Root Beer16 fl oz29 mg1.81 mg
Barq's Root Beer20 fl oz37 mg1.85 mg
Diet Barq's Root Beer12 fl oz00
Diet Barq's Root Beer20 fl oz00


Barq’s: Carbonated water, high fructose corn syrup, caramel color, sodium benzoate, citric acid, caffeine, artificial and natural flavors, acacia.

Diet Barq’s: Carbonated water, caramel color, potassium sorbate, sodium benzoate, aspartame, citric acid, acesulfame potassium, artificial and natural flavors, acacia, potassium chloride.


Barq's ProductServing SizeCaloriesTotal Fat (g)Sodium (mg)Carbs (g)Sugars (g)Protein (g)
Barq's 7.5 fl oz10004528280
Barq's12 fl oz16007045450
Barq's16 fl oz22009560600
Barq's20 fl oz270011575740
Diet Barq's12 fl oz0050000
Diet Barq's20 fl oz0085000


Barq’s was introduced in 1898 and was created by Edward Barq Sr. It was first sold in Biloxi, Mississippi where Edward Barq resided. It is currently manufactured by The Coca-Cola Company who purchased Barq’s in 1995. Barq’s is known for its “bite” or sharp taste that is not found in other root beer.

Data Source: &
Image: Tom Magliery