Dunkin hot coffee (medium) has more caffeine than GURU Original on both counts: 210mg per 14 oz medium against 140mg per 12 oz can, and about 15mg per fluid ounce against 12. The serving sizes differ, so the table below shows both ways of counting.
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 hot coffee (medium) vs GURU Original: the numbers
| Dunkin hot coffee (medium) | GURU Original | |
|---|---|---|
| Caffeine per serving | 210mg per 14 oz medium | 140mg per 12 oz can |
| Caffeine per fl oz | 15.0mg | 11.7mg |
| Servings to reach 400mg (FDA context) | 1.9 | 2.9 |
Sources: Dunkin hot coffee (medium)'s figure is verified in our Dunkin hot coffee (medium) caffeine guide against Tasting Table / Dunkin figures (source); GURU Original's figure is verified in our GURU Original guide against Caffeine Informer (source).
Which one should you pick?
Pick GURU Original when you want the lighter dose or a slower ramp, and Dunkin hot 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 hot coffee (medium): the full caffeine guide
- GURU Original: the full caffeine guide
- The verified caffeine database
FAQ
Does Dunkin hot coffee (medium) or GURU Original have more caffeine? Dunkin hot coffee (medium): 210mg per 14 oz medium versus 140mg per 12 oz can for GURU Original.
Which is stronger per ounce? Dunkin hot coffee (medium), at about 15.0mg per fluid ounce versus 11.7mg for GURU Original.
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.