Dunkin cold brew (medium) carries more total caffeine per serving (260mg per 24 oz medium vs 200mg per 12 oz can), but ounce for ounce Celsius is actually the stronger drink at about 17mg per fluid ounce against 11. Which one "has more caffeine" depends on whether you measure the container or the concentration.
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.
Dunkin cold brew (medium) vs Celsius: the numbers
| Dunkin cold brew (medium) | Celsius | |
|---|---|---|
| Caffeine per serving | 260mg per 24 oz medium | 200mg per 12 oz can |
| Caffeine per fl oz | 10.8mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 1.5 | 2.0 |
Sources: Dunkin cold brew (medium)'s figure is verified in our Dunkin cold brew (medium) caffeine guide against Caffeine Informer (source); Celsius's figure is verified in our Celsius guide against Celsius essential facts (source).
Which one should you pick?
Pick Celsius when you want the lighter dose or a slower ramp, and Dunkin cold brew (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 cold brew (medium): the full caffeine guide
- Celsius: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Dunkin cold brew (medium) or Celsius have more caffeine? Dunkin cold brew (medium): 260mg per 24 oz medium versus 200mg per 12 oz can for Celsius.
Which is stronger per ounce? Celsius, at about 16.7mg per fluid ounce versus 10.8mg for Dunkin cold brew (medium).
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