How much does CO2 have in coke and Diet Coke?

Coca-Cola and Diet Coke typically contain a similar amount of carbon dioxide (CO2), which is used to create their characteristic fizziness. The CO2 content in these beverages can range from about 2.5 to 3.5 volumes of CO2, depending on the specific formulation and carbonation process. This level of carbonation is designed to enhance the sensory experience of the drink.