Starbucks canned Nitro (Black) has more caffeine than brewed coffee on both counts: 155mg per 9.6 oz can against 95mg per 8 oz cup, and about 16mg per fluid ounce against 12. The serving sizes differ, so the table below shows both ways of counting.
These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.
Starbucks canned Nitro (Black) vs brewed coffee: the numbers
| Starbucks canned Nitro (Black) | brewed coffee | |
|---|---|---|
| Caffeine per serving | 155mg per 9.6 oz can | 95mg per 8 oz cup |
| Caffeine per fl oz | 16.1mg | 11.9mg |
| Servings to reach 400mg (FDA context) | 2.6 | 4.2 |
Sources: Starbucks canned Nitro (Black)'s figure is verified in our Starbucks canned Nitro (Black) caffeine guide against PepsiCo product facts (source); brewed coffee's figure is verified in our brewed coffee guide against USDA FoodData Central (source).
Which one should you pick?
Pick brewed coffee when you want the lighter dose or a slower ramp, and Starbucks canned Nitro (Black) 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
- brewed coffee: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
FAQ
Does Starbucks canned Nitro (Black) or brewed coffee have more caffeine? Starbucks canned Nitro (Black): 155mg per 9.6 oz can versus 95mg per 8 oz cup for brewed coffee.
Which is stronger per ounce? Starbucks canned Nitro (Black), at about 16.1mg per fluid ounce versus 11.9mg for brewed coffee.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.