Dunkin Sparkd Energy (medium) carries more total caffeine per serving (144mg per 24 oz medium vs 95mg per 8 oz cup), but ounce for ounce brewed coffee is actually the stronger drink at about 12mg per fluid ounce against 6. 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.
brewed coffee vs Dunkin Sparkd Energy (medium): the numbers
| brewed coffee | Dunkin Sparkd Energy (medium) | |
|---|---|---|
| Caffeine per serving | 95mg per 8 oz cup | 144mg per 24 oz medium |
| Caffeine per fl oz | 11.9mg | 6.0mg |
| Servings to reach 400mg (FDA context) | 4.2 | 2.8 |
Sources: brewed coffee's figure is verified in our brewed coffee caffeine guide against USDA FoodData Central (source); Dunkin Sparkd Energy (medium)'s figure is verified in our Dunkin Sparkd Energy (medium) guide against Caffeine Informer Dunkin guide (source).
Which one should you pick?
Pick brewed coffee when you want the lighter dose or a slower ramp, and Dunkin Sparkd Energy (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
- brewed coffee: the full caffeine guide
- Dunkin Sparkd Energy (medium): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
FAQ
Does brewed coffee or Dunkin Sparkd Energy (medium) have more caffeine? Dunkin Sparkd Energy (medium): 144mg per 24 oz medium versus 95mg per 8 oz cup for brewed coffee.
Which is stronger per ounce? brewed coffee, at about 11.9mg per fluid ounce versus 6.0mg for Dunkin Sparkd Energy (medium).
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.