Caffeine in Red Bull

There are 80mg in an 8.4 fl oz can of Red Bull and 111mg of caffeine in one 12 oz. can of red bull. By comparison one cup of coffee contains about 95mg of caffeine.

Nutrition Facts
Amount Per 
Calories 168
% Daily Value*
Total Fat 0.3 g0%
Saturated fat 0 g0%
Polyunsaturated fat 0 g
Monounsaturated fat 0 g
Cholesterol 0 mg0%
Sodium 140 mg5%
Potassium 11 mg0%
Total Carbohydrate 40 g13%
Dietary fiber 0 g0%
Sugar 37 g 
Protein 0.9 g1%
Caffeine 111 mg
Vitamin A0%Vitamin C0%
Vitamin D0%Vitamin B-6360%
Vitamin B-12119%Magnesium2%
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Sources include: USDA