Starbucks Pike Place (grande) has more caffeine than Reign Storm on both counts: 310mg per 16 oz grande against 200mg per 12 oz can, and about 19mg per fluid ounce against 17. 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.
Starbucks Pike Place (grande) vs Reign Storm: the numbers
| Starbucks Pike Place (grande) | Reign Storm | |
|---|---|---|
| Caffeine per serving | 310mg per 16 oz grande | 200mg per 12 oz can |
| Caffeine per fl oz | 19.4mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 1.3 | 2.0 |
Sources: Starbucks Pike Place (grande)'s figure is verified in our Starbucks Pike Place (grande) caffeine guide against Starbucks menu data (source); Reign Storm's figure is verified in our Reign Storm guide against Caffeine Informer (source).
Which one should you pick?
Pick Reign Storm when you want the lighter dose or a slower ramp, and Starbucks Pike Place (grande) 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
- Starbucks Pike Place (grande): the full caffeine guide
- Reign Storm: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
FAQ
Does Starbucks Pike Place (grande) or Reign Storm have more caffeine? Starbucks Pike Place (grande): 310mg per 16 oz grande versus 200mg per 12 oz can for Reign Storm.
Which is stronger per ounce? Starbucks Pike Place (grande), at about 19.4mg per fluid ounce versus 16.7mg for Reign Storm.
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.