ComparisonsOct 15, 20263 min read

Coffee vs energy drinks: which has more caffeine?

A cup of coffee has about 95 mg; energy drinks range from about 80 mg (Red Bull) to 200 mg+ (Celsius). See how they stack up.

A cup of brewed coffee on a table

It depends on which energy drink. A plain 8 oz cup of coffee (about 95 mg) beats a Red Bull (about 80 mg), but Monster and Celsius both beat coffee.

Caffeine side by side
DrinkServingCaffeinePer ounce
Brewed coffee8 oz95 mg11.9 mg/oz
Red Bull8.4 oz80 mg9.5 mg/oz
Monster16 oz160 mg10 mg/oz
Celsius Original12 oz200 mg16.7 mg/oz
Approximate values from the Knuckle caffeine database. Real amounts vary by flavor, brand and brew.

Watch the cup size

Coffee numbers here are for 8 oz. Most mugs and cafe cups are 12 to 20 oz, so a real-world coffee often lands near or above a Monster.

Go deeper

Compare more: energy drinks ranked and caffeine in coffee. See them side by side on the Caffeine Bubble Map, or add these to your day in the Caffeine Calculator.

Written by · Published

Mike Zagare

is the founder of Knuckle. He tapered off a 500 to 600mg-a-day habit and built Knuckle from that protocol.

Common questions

Does a Red Bull have more caffeine than coffee?

No. A Red Bull has about 80 mg versus about 95 mg in 8 oz of brewed coffee.

Which energy drinks beat coffee?

Monster (about 160 mg) and Celsius (about 200 mg) both have more than a standard cup.

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