Starbucks Blonde Roast has more caffeine than Dunkin iced coffee (medium) on both counts: 360mg per 16 oz grande against 297mg per 24 oz medium, and about 22mg per fluid ounce against 12. The serving sizes differ, so the table below shows both ways of counting.
Starbucks Blonde Roast vs Dunkin iced coffee (medium): the numbers
| Starbucks Blonde Roast | Dunkin iced coffee (medium) | |
|---|---|---|
| Caffeine per serving | 360mg per 16 oz grande | 297mg per 24 oz medium |
| Caffeine per fl oz | 22.5mg | 12.4mg |
| Servings to reach 400mg (FDA context) | 1.1 | 1.3 |
Sources: Starbucks Blonde Roast's figure is verified in our Starbucks Blonde Roast caffeine guide against Starbucks nutrition listing (source); Dunkin iced coffee (medium)'s figure is verified in our Dunkin iced coffee (medium) guide against Caffeine Informer Dunkin guide (source).
Which one should you pick?
Pick Dunkin iced coffee (medium) when you want the lighter dose or a slower ramp, and Starbucks Blonde Roast 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 Blonde Roast: the full caffeine guide
- Dunkin iced coffee (medium): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Starbucks Blonde Roast or Dunkin iced coffee (medium) have more caffeine? Starbucks Blonde Roast: 360mg per 16 oz grande versus 297mg per 24 oz medium for Dunkin iced coffee (medium).
Which is stronger per ounce? Starbucks Blonde Roast, at about 22.5mg per fluid ounce versus 12.4mg for Dunkin iced coffee (medium).
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