Pure Leaf black iced tea has more caffeine than Vanilla Coke on both counts: 54mg per 18.5 oz bottle against 34mg per 12 oz can, and about 3mg per fluid ounce against 3. 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.
Pure Leaf black iced tea vs Vanilla Coke: the numbers
| Pure Leaf black iced tea | Vanilla Coke | |
|---|---|---|
| Caffeine per serving | 54mg per 18.5 oz bottle | 34mg per 12 oz can |
| Caffeine per fl oz | 2.9mg | 2.8mg |
| Servings to reach 400mg (FDA context) | 7.4 | 11.8 |
Sources: Pure Leaf black iced tea's figure is verified in our Pure Leaf black iced tea caffeine guide against PepsiCo label data (source); Vanilla Coke's figure is verified in our Vanilla Coke guide against Caffeine Informer (source).
Which one should you pick?
Pick Vanilla Coke when you want the lighter dose or a slower ramp, and Pure Leaf black iced tea 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
- Pure Leaf black iced tea: the full caffeine guide
- Vanilla Coke: the full caffeine guide
- The verified caffeine database
FAQ
Does Pure Leaf black iced tea or Vanilla Coke have more caffeine? Pure Leaf black iced tea: 54mg per 18.5 oz bottle versus 34mg per 12 oz can for Vanilla Coke.
Which is stronger per ounce? Pure Leaf black iced tea, at about 2.9mg per fluid ounce versus 2.8mg for Vanilla Coke.
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.