Does Coke Zero Have Caffeine?

How Much Caffeine in Coke Zero?

Coke Zero or Coca-Cola Zero does contain caffeine. There are 34 milligrams of caffeine in a 12-ounce can of Coke Zero. The caffeine level is the same in the various Coke Zero flavors that include cherry, vanilla, and regular. Additionally, Coke Zero contains the same amount of caffeine as regular Coca-Cola.

Coke Zero Caffeine Content

ProductServing SizeCaffeine (mg)Caffeine(mg)/fl oz
Coke Zero7.5 fl oz21 mg2.8 mg
Coke Zero12 fl oz34 mg2.83 mg
Coke Zero 20 fl oz57 mg2.85 mg


Carbonated water, caramel color, phosphoric acid, aspartame, potassium benzoate, natural flavors, potassium citrate, acesulfame potassium, caffeine.


Serving Size7.5 fl oz12 fl oz20 fl oz
Total Fat000
Sodium25 mg40 mg70 mg


Coke Zero is a zero-calorie carbonated beverage that was introduced in 2005. It quickly became a success after its release. The Coca-Cola Company considered it one of its greatest product achievements since the release of Diet Coke in the early 1980’s. There are some slight variations between Coke Zero and Diet Coke. Diet Coke has more caffeine (46 mg per 12 fl oz). The caffeine in Coke Zero is 34 mg per 12 fl oz as indicated above. Additionally, Coke Zero features two artificial sweeteners (aspartame and acesulfame potassium) while Diet Coke contains only one (aspartame). Many people believe that Coke Zero tastes closer to regular Coca-Cola compared to Diet Coke.

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