Starbucks Nitro Cold Brew has more caffeine than Starbucks Iced Coffee: 280mg vs 165mg in the same 16 oz grande. That is a 115mg gap, and since the cans match, the per-serving number is the whole story.
Starbucks Iced Coffee vs Starbucks Nitro Cold Brew: the numbers
| Starbucks Iced Coffee | Starbucks Nitro Cold Brew | |
|---|---|---|
| Caffeine per serving | 165mg per 16 oz grande | 280mg per 16 oz grande |
| Caffeine per fl oz | 10.3mg | 17.5mg |
| Servings to reach 400mg (FDA context) | 2.4 | 1.4 |
Sources: Starbucks Iced Coffee's figure is verified in our Starbucks Iced Coffee caffeine guide against Starbucks nutrition listing (source); Starbucks Nitro Cold Brew's figure is verified in our Starbucks Nitro Cold Brew guide against Starbucks nutrition listing (source).
Which one should you pick?
Pick Starbucks Iced Coffee when you want the lighter dose or a slower ramp, and Starbucks Nitro Cold Brew 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 Iced Coffee: the full caffeine guide
- Starbucks Nitro Cold Brew: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Starbucks Iced Coffee or Starbucks Nitro Cold Brew have more caffeine? Starbucks Nitro Cold Brew: 280mg per 16 oz grande versus 165mg per 16 oz grande for Starbucks Iced Coffee.
Which is stronger per ounce? Starbucks Nitro Cold Brew, at about 17.5mg per fluid ounce versus 10.3mg for Starbucks Iced Coffee.
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