Pepsi and Coke are inarguably the most popular colas in the world. Needless to say, they have been compared countless times through the years. Well, we are going to compare them once again. This time the topic is the amount of caffeine in Pepsi vs Coke.
Pepsi vs Coke Caffeine
As the table below shows, regular Pepsi has a bit more caffeine compared to regular Coke. For example, a 12-ounce Pepsi has 38mg of caffeine per can whereas Coke has 34mg.
| Product | Serving Size | Caffeine(mg) |
| Pepsi | 7.5 fl oz | 24 mg |
| Coke | 7.5 fl oz | 21 mg |
| Pepsi | 12 fl oz | 38 mg |
| Coke | 12 fl oz | 34 mg |
| Pepsi | 16.9 fl oz | 53 mg |
| Coke | 16.9 fl oz | 48 mg |
| Pepsi | 20 fl oz | 63 mg |
| Coke | 20 fl oz | 57 mg |
Diet Pepsi vs Diet Coke Caffeine
While regular Pepsi has more caffeine than regular coke, the opposite is true for Diet Pepsi and Diet Coke. For example, a 12-ounce Diet Pepsi has 35mg of caffeine per can whereas Diet Coke of the same size has 46mg.
| Product | Serving Size | Caffeine(mg) |
| Diet Pepsi | 7.5 fl oz | 22 mg |
| Diet Coke | 7.5 fl oz | 28 mg |
| Diet Pepsi | 12 fl oz | 35 mg |
| Diet Coke | 12 fl oz | 46 mg |
| Diet Pepsi | 16.9 fl oz | 50 mg |
| Diet Coke | 16.9 fl oz | 64 mg |
| Diet Pepsi | 20 fl oz | 59 mg |
| Diet Coke | 20 fl oz | 76 mg |
Pepsi & Coke vs Others: Caffeine
The caffeine in Pepsi and Coke is low in comparison to many other beverages with caffeine. The table below gives you an idea of how much caffeine is in Pepsi and Coke vs other popular beverages.
| Product | Serving Size | Caffeine(mg) |
| Pepsi | 12 fl oz | 38 mg |
| Coke | 12 fl oz | 34 mg |
| Diet Pepsi | 12 fl oz | 35 mg |
| Diet Coke | 12 fl oz | 46 mg |
| RC Cola | 12 fl oz | 43 mg |
| MTN Dew | 12 fl oz | 54 mg |
| Red Bull | 12 fl oz | 114 mg |
| Monster | 12 fl oz | 120 mg |
| Coffee | 12 fl oz | 144 mg* |
| Black Tea | 12 fl oz | 63 mg* |
