Daily How Much

A standard 12-ounce can of regular Pepsi contains 38 mg of caffeine, enough for a mild lift without the kick of coffee or energy drinks.

A standard 12-ounce can of Diet Coke contains 46 mg of caffeine, which is more than regular Coke but still significantly less than a typical 8-ounce.

A standard 12-ounce can of Coca-Cola Classic contains about 34 mg of caffeine, which is less than half the caffeine found in an 8-ounce cup.

A 20-ounce bottle of Pepsi contains about 63 mg of caffeine. A 12-ounce can has roughly 38 mg, far less than a standard cup of coffee.

An 8-ounce cup of black tea brewed from a standard tea bag contains about 47 to 48 milligrams of caffeine.

A 20 oz bottle of regular Pepsi contains 63 mg of caffeine — less than an 8 oz cup.

A 12-ounce can of regular Mountain Dew contains 54 mg of caffeine, the same amount found in Diet Mountain Dew.

A 12-ounce can of regular Mountain Dew contains about 54 mg of caffeine, similar to Diet Mountain Dew and less than an 8-ounce cup of brewed coffee.

A standard 1/2 teaspoon serving of MiO Energy contains 60 mg of caffeine, roughly the same as a small cup of coffee.

MiO Energy contains 60 mg of caffeine per standard ½-teaspoon serving, while MiO Original, MiO Vitamins, and MiO Electrolytes are caffeine-free.