Bang carries more total caffeine per serving (300mg per 16 oz can vs 230mg per 1.93 oz shot), but ounce for ounce 5-hour Energy Extra Strength is actually the stronger drink at about 119mg per fluid ounce against 19. Which one "has more caffeine" depends on whether you measure the container or the concentration.
Bang vs 5-hour Energy Extra Strength: the numbers
| Bang | 5-hour Energy Extra Strength | |
|---|---|---|
| Caffeine per serving | 300mg per 16 oz can | 230mg per 1.93 oz shot |
| Caffeine per fl oz | 18.8mg | 119.2mg |
| Servings to reach 400mg (FDA context) | 1.3 | 1.7 |
Sources: Bang's figure is verified in our Bang caffeine guide against Caffeine Informer (source); 5-hour Energy Extra Strength's figure is verified in our 5-hour Energy Extra Strength guide against 5-hour Energy facts page (source).
The concentration gap is the striking part: 5-hour Energy Extra Strength packs roughly 6 times the caffeine per ounce. Sipping speed matters at that density; a 1.93 oz shot finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick 5-hour Energy Extra Strength when you want the lighter dose or a slower ramp, and Bang 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
- Bang: the full caffeine guide
- 5-hour Energy Extra Strength: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
FAQ
Does Bang or 5-hour Energy Extra Strength have more caffeine? Bang: 300mg per 16 oz can versus 230mg per 1.93 oz shot for 5-hour Energy Extra Strength.
Which is stronger per ounce? 5-hour Energy Extra Strength, at about 119.2mg per fluid ounce versus 18.8mg for Bang.
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.