Dunkin' Extra Charged (medium) has more caffeine than Dunkin' Bottled Iced Coffee on both counts: 252mg per 14 oz medium against 197mg per 13.7 oz bottle, and about 18mg per fluid ounce against 14. The serving sizes differ, so the table below shows both ways of counting.
Dunkin' Bottled Iced Coffee vs Dunkin' Extra Charged (medium): the numbers
| Dunkin' Bottled Iced Coffee | Dunkin' Extra Charged (medium) | |
|---|---|---|
| Caffeine per serving | 197mg per 13.7 oz bottle | 252mg per 14 oz medium |
| Caffeine per fl oz | 14.4mg | 18.0mg |
| Servings to reach 400mg (FDA context) | 2.0 | 1.6 |
Sources: Dunkin' Bottled Iced Coffee's figure is verified in our Dunkin' Bottled Iced Coffee caffeine guide against Caffeine Informer (source); Dunkin' Extra Charged (medium)'s figure is verified in our Dunkin' Extra Charged (medium) guide against Caffeine Informer (source).
Which one should you pick?
Pick Dunkin' Bottled Iced Coffee when you want the lighter dose or a slower ramp, and Dunkin' Extra Charged (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' Bottled Iced Coffee: the full caffeine guide
- Dunkin' Extra Charged (medium): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Dunkin' Bottled Iced Coffee or Dunkin' Extra Charged (medium) have more caffeine? Dunkin' Extra Charged (medium): 252mg per 14 oz medium versus 197mg per 13.7 oz bottle for Dunkin' Bottled Iced Coffee.
Which is stronger per ounce? Dunkin' Extra Charged (medium), at about 18.0mg per fluid ounce versus 14.4mg for Dunkin' Bottled Iced 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.