Coca-Cola Classic Caffeine Content

How Much Caffeine in Coca-Cola?

A can of Coca-Cola Classic (12-ounces) contains 34 mg of caffeine. A 20-ounce bottle of Coca-Cola has 57 mg of caffeine. See the table below for the caffeine in various Coca-Cola serving sizes.

Caffeine in Coke – Various Serving Sizes

ProductServing SizeCaffeine (mg)Caffeine(mg)/fl oz
Coca-Cola Classic7.5 fl oz21 mg2.8 mg
Coca-Cola Classic8 fl oz23 mg2.88 mg
Coca-Cola Classic8.5 fl oz24 mg2.82 mg
Coca-Cola Classic12 fl oz34 mg2.83 mg
Coca-Cola Classic16 fl oz45 mg2.81 mg
Coca-Cola Classic20 fl oz57 mg2.85 mg


Carbonated water, high fructose corn syrup, caramel color, phosphoric acid, natural flavors, caffeine.

Nutrition Facts

ProductServing SizeCaloriesTotal Fat (g)Sodium (mg)Carbs (g)Sugars (g)Protein (g)
Coca-Cola Classic7.5 fl oz9003025250
Coca-Cola Classic8 fl oz10003026260
Coca-Cola Classic8.5 fl oz10003528280
Coca-Cola Classic12 fl oz14004539390
Coca-Cola Classic16 fl oz19006052520
Coca-Cola Classic20 fl oz240 07565650

Caffeine in Other Coca-Cola Product

ProductServing SizeCaffeine (mg)Caffeine(mg)/fl oz
Cherry Coke12 fl oz34 mg2.83 mg
Vanilla Coca-Cola12 fl oz34 mg2.83 mg
Coca-Cola Life12 fl oz28 mg2.33 mg
Coca-Cola Zero12 fl oz34 mg2.83 mg
Diet Coke12 fl oz46 mg3.83 mg
Diet Coke with Lime12 fl oz46 mg3.83 mg
Diet Coke Cherry12 fl oz34 mg 2.83 mg


Coca-Cola is the best selling soft drink in the world. It is believed that approximately 94 percent of the world can recognize the Coca-Cola logo. It all began in 1886 by a pharmacist named Dr. John S. Pemberton. Pemberton died just two years after the introduction of Coca-Cola so he saw only a fraction of its success. A person named Asa Griggs Candler took over Coca-Cola for $2,300. Candler created a marketing campaign by offering free Coke coupons to consumers to inspire them to rebuy Coca-Cola after they tried the soda and enjoyed the taste. Similarly to Coca-Cola’s heavy advertising campaign today, Candler also made sure the Coca-Cola logo was seen on a large scale. These two marketing campaigns helped the Coca-Cola brand move from a regional market to the national stage. It quickly became one of best selling fountain drinks.