brewed coffee vs Reign Storm: which has more caffeine?

Reign Storm has more caffeine than brewed coffee on both counts: 200mg per 12 oz can against 95mg per 8 oz cup, and about 17mg 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.

brewed coffee vs Reign Storm: the numbers

Sources: brewed coffee's figure is verified in our brewed coffee caffeine guide against USDA FoodData Central (source); Reign Storm's figure is verified in our Reign Storm guide against Caffeine Informer (source).

Which one should you pick?

Pick brewed coffee when you want the lighter dose or a slower ramp, and Reign Storm 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
• Reign Storm: the full caffeine guide
• The verified caffeine database

FAQ

Does brewed coffee or Reign Storm have more caffeine? Reign Storm: 200mg per 12 oz can versus 95mg per 8 oz cup for brewed coffee.

Which is stronger per ounce? Reign Storm, at about 16.7mg per fluid ounce versus 11.9mg for brewed coffee.