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C4 Smart Energy has about 200mg of caffeine per 16 oz can. This page lines it up against every drink we have compared it to, sorted strongest first, so you can see exactly where it lands. Every number is the standard published value, sourced on each comparison page.
How C4 Smart Energy compares
Every C4 Smart Energy comparison
- C4 Smart Energy vs Redline Xtreme (316mg per 8 oz bottle)
- C4 Smart Energy vs Starbucks Pike Place (grande) (310mg per 16 oz grande)
- C4 Smart Energy vs Bang (300mg per 16 oz can)
- C4 Smart Energy vs Reign Total Body Fuel (300mg per 16 oz can)
- C4 Smart Energy vs Dunkin iced coffee (medium) (297mg per 24 oz medium)
- C4 Smart Energy vs Dunkin hot coffee (medium) (210mg per 14 oz medium)
- C4 Smart Energy vs Starbucks cold brew (grande) (205mg per 16 oz grande)
- C4 Smart Energy vs Celsius (200mg per 12 oz can)
- C4 Smart Energy vs Prime Energy (200mg per 12 oz can)
- C4 Smart Energy vs Alani Nu (200mg per 12 oz can)
- C4 Smart Energy vs 5-hour Energy (regular) (200mg per 1.93 oz shot)
- C4 Smart Energy vs Super Coffee (200mg per 12 oz bottle)
- C4 Smart Energy vs C4 Performance Energy (200mg per 16 oz can)
- C4 Smart Energy vs Java Monster (200mg per 15 oz can)
- C4 Smart Energy vs Java Monster (188mg per 15 oz can)
- C4 Smart Energy vs Monster (160mg per 16 oz can)
- C4 Smart Energy vs Rockstar Original (160mg per 16 oz can)
- C4 Smart Energy vs AMP Energy Original (142mg per 16 oz can)
- C4 Smart Energy vs Starbucks Doubleshot Espresso & Cream (120mg per 6.5 oz can)
- C4 Smart Energy vs Zevia Energy (120mg per 12 oz can)
- C4 Smart Energy vs brewed coffee (95mg per 8 oz cup)
- C4 Smart Energy vs yerba mate (85mg per 8 oz cup)
- C4 Smart Energy vs Red Bull (80mg per 8.4 oz can)
- C4 Smart Energy vs Aspire Energy (80mg per 12 oz can)
- C4 Smart Energy vs espresso (63mg per 1 oz shot)
- C4 Smart Energy vs matcha (60mg per 8 oz cup (1 tsp, ~2g))
- C4 Smart Energy vs Mountain Dew (54mg per 12 oz can)
- C4 Smart Energy vs brewed black tea (47mg per 8 oz cup)
- C4 Smart Energy vs Diet Coke (46mg per 12 oz can)
- C4 Smart Energy vs Dr Pepper (41mg per 12 oz can)
- C4 Smart Energy vs Pepsi (38mg per 12 oz can)
- C4 Smart Energy vs Coca-Cola Classic (34mg per 12 oz can)
- C4 Smart Energy vs brewed green tea (28mg per 8 oz cup)
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.
Compare it yourself
Want a matchup that is not listed? The caffeine comparison tool puts C4 Smart Energy against any of 85 drinks, and the full caffeine chart shows everything at once.
FAQ
How much caffeine is in C4 Smart Energy? About 200mg per 16 oz can, the standard published figure.
What has more caffeine than C4 Smart Energy? Among the drinks compared here, Redline Xtreme is at the strong end with 316mg per 8 oz bottle.
What has less caffeine than C4 Smart Energy? On the lighter end, brewed green tea has 28mg per 8 oz cup.
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