Dunkin iced coffee (medium) has more caffeine than brewed coffee on both counts: 297mg per 24 oz medium against 95mg per 8 oz cup, and about 12mg per fluid ounce against 12. The serving sizes differ, so the table below shows both ways of counting.
Dunkin iced coffee (medium) vs brewed coffee: the numbers
| Dunkin iced coffee (medium) | brewed coffee | |
|---|---|---|
| Caffeine per serving | 297mg per 24 oz medium | 95mg per 8 oz cup |
| Caffeine per fl oz | 12.4mg | 11.9mg |
| Servings to reach 400mg (FDA context) | 1.3 | 4.2 |
Sources: Dunkin iced coffee (medium)'s figure is verified in our Dunkin iced coffee (medium) caffeine guide against Caffeine Informer Dunkin guide (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 Dunkin iced coffee (medium) 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
- Dunkin iced coffee (medium): the full caffeine guide
- brewed coffee: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
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Gear from this guide
FAQ
Does Dunkin iced coffee (medium) or brewed coffee have more caffeine? Dunkin iced coffee (medium): 297mg per 24 oz medium versus 95mg per 8 oz cup for brewed coffee.
Which is stronger per ounce? Dunkin iced coffee (medium), at about 12.4mg 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.
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