Starbucks canned Nitro (Black) vs Java Monster: which has more caffeine?

Java Monster carries more total caffeine per serving (200mg per 15 oz can vs 155mg per 9.6 oz can), but ounce for ounce Starbucks canned Nitro (Black) is actually the stronger drink at about 16mg per fluid ounce against 13. Which one "has more caffeine" depends on whether you measure the container or the concentration.

Starbucks canned Nitro (Black) vs Java Monster: the numbers

Sources: Starbucks canned Nitro (Black)'s figure is verified in our Starbucks canned Nitro (Black) caffeine guide against PepsiCo product facts (source); Java Monster's figure is verified in our Java Monster guide against Caffeine Informer (source).

Which one should you pick?

Pick Starbucks canned Nitro (Black) when you want the lighter dose or a slower ramp, and Java Monster when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.

For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.

Related reading

• Starbucks canned Nitro (Black): the full caffeine guide
• Java Monster: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index

FAQ

Does Starbucks canned Nitro (Black) or Java Monster have more caffeine? Java Monster: 200mg per 15 oz can versus 155mg per 9.6 oz can for Starbucks canned Nitro (Black).

Which is stronger per ounce? Starbucks canned Nitro (Black), at about 16.1mg per fluid ounce versus 13.3mg for Java Monster.