How much caffeine is in C4 Energy?
A 16 oz C4 Energy has about 200 mg of caffeine, and C4 Ultimate has about 300 mg. See every variety and how it compares.
A 16 oz can of C4 Energy has about 200 mg of caffeine, and C4 Ultimate jumps to about 300 mg.
| C4 | Size | Caffeine |
|---|---|---|
| C4 Energy | 16 oz | 200 mg |
| C4 Ultimate | 16 oz | 300 mg |
| C4 Smart Energy | 16 oz | 200 mg |
| C4 Energy (12 oz) | 12 oz | ~200 mg |
C4 Ultimate matches Bang at about 300 mg, three coffees in one can. Add it to your daily total in the Caffeine Calculator.
Compare other energy drinks
See the caffeine in Red Bull, Monster, 5-Hour Energy, Celsius, Prime Energy, Bang, Alani Nu.
Written by Mike Zagare · Published
Mike Zagare is the founder of Knuckle. He tapered off a 500 to 600mg-a-day habit and built Knuckle from that protocol.
Common questions
How much caffeine is in C4 Ultimate?
About 300 mg per 16 oz can.
Is C4 stronger than Monster?
Standard C4 (~200 mg) has a bit more than a 16 oz Monster (~160 mg); C4 Ultimate has nearly double.
Is C4 Energy safe to drink every day?
One standard can fits within limits for most healthy adults, but C4 Ultimate is a very large dose.
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