OLIPOP Vintage Cola has more caffeine than A&W Root Beer: 50mg vs 0mg in the same 12 oz can. That is a 50mg gap, and since the cans match, the per-serving number is the whole story.
A&W Root Beer vs OLIPOP Vintage Cola: the numbers
| A&W Root Beer | OLIPOP Vintage Cola | |
|---|---|---|
| Caffeine per serving | 0mg per 12 oz can | 50mg per 12 oz can |
| Caffeine per fl oz | 0.0mg | 4.2mg |
| Servings to reach 400mg (FDA context) | n/a (caffeine-free) | 8.0 |
Sources: A&W Root Beer's figure is verified in our A&W Root Beer caffeine guide against Caffeine Informer (source); OLIPOP Vintage Cola's figure is verified in our OLIPOP Vintage Cola guide against Caffeine Informer (source).
The concentration gap is the striking part: OLIPOP Vintage Cola packs roughly 417 times the caffeine per ounce. Sipping speed matters at that density; a 12 oz can finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick A&W Root Beer when you want the lighter dose or a slower ramp, and OLIPOP Vintage Cola 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
- A&W Root Beer: the full caffeine guide
- OLIPOP Vintage Cola: the full caffeine guide
- The verified caffeine database
FAQ
Does A&W Root Beer or OLIPOP Vintage Cola have more caffeine? OLIPOP Vintage Cola: 50mg per 12 oz can versus 0mg per 12 oz can for A&W Root Beer.
Which is stronger per ounce? OLIPOP Vintage Cola, at about 4.2mg per fluid ounce versus 0.0mg for A&W Root Beer.
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