Dr Pepper has more caffeine than Caffeine Free Coca-Cola: 41mg vs 0mg in the same 12 oz can. That is a 41mg gap, and since the cans match, the per-serving number is the whole story.
Caffeine Free Coca-Cola vs Dr Pepper: the numbers
| Caffeine Free Coca-Cola | Dr Pepper | |
|---|---|---|
| Caffeine per serving | 0mg per 12 oz can | 41mg per 12 oz can |
| Caffeine per fl oz | 0.0mg | 3.4mg |
| Servings to reach 400mg (FDA context) | n/a (caffeine-free) | 9.8 |
Sources: Caffeine Free Coca-Cola's figure is verified in our Caffeine Free Coca-Cola caffeine guide against Caffeine Informer (source); Dr Pepper's figure is verified in our Dr Pepper guide against KDP product facts / Caffeine Informer (source).
The concentration gap could not be simpler: Caffeine Free Coke has no caffeine at all, so the Dr Pepper figure of 41mg per 12 oz can is the entire difference.
Which one should you pick?
Pick Caffeine Free Coca-Cola when you want the lighter dose or a slower ramp, and Dr Pepper 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
- Caffeine Free Coca-Cola: the full caffeine guide
- Dr Pepper: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Caffeine Free Coca-Cola or Dr Pepper have more caffeine? Dr Pepper: 41mg per 12 oz can versus 0mg per 12 oz can for Caffeine Free Coca-Cola.
Which is stronger per ounce? Dr Pepper, at about 3.4mg per fluid ounce versus 0.0mg for Caffeine Free Coca-Cola.
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