Energy drinks › Monster vs Rockstar
Monster vs Rockstar: the caffeine math
Label caffeine, size by size.
| Line | Size | Caffeine | ≈ coffees | % of 400mg/day |
|---|---|---|---|---|
| Monster Energy | 16oz | 160mg | 1.7 | 40% |
| Monster Ultra | 16oz | 140mg | 1.5 | 35% |
| Rockstar Original | 16oz | 160mg | 1.7 | 40% |
| Rockstar Punched | 16oz | 240mg | 2.5 | 60% |
Per-can numbers hide the real difference: caffeine density. Monster's strongest line runs 10.0mg/oz vs Rockstar's 15.0mg/oz — and whichever you choose, the second can of the day matters more than the brand.
Track the total, not the brand. SteadyBeast logs every can and pouch and shows your real daily stimulant load.Get early access
Educational information only — not medical advice, and not an endorsement of any product. Nicotine is addictive. Values reflect manufacturer label information ("label mg"), which describes nicotine content per pouch; absorbed amounts vary by person and use. Lineups change — always confirm the printed strength on your package. SteadyBeast is a coaching and self-tracking tool, not medical care. If you're in crisis, call or text 988.