Celsius vs Monster: caffeine compared
Celsius has 199 mg of caffeine per 12 oz can. Monster has 160 mg per 16.9 oz can.
Per serving Celsius is ahead: 199 mg against 160 mg, about 25% more. Per 100 ml Celsius is ahead: 56 mg against 32 mg, about 75% more.
| Celsius | Monster | |
|---|---|---|
| Serving | 12 oz can (355 ml) | 16.9 oz can (500 ml) |
| Caffeine per serving | 199 mg | 160 mg |
| Caffeine per 100 ml | 56 mg | 32 mg |
| Caffeine per fl oz | 16.6 mg | 9.5 mg |
| In the same 12 oz (355 ml) | 199 mg | 114 mg |
| Share of the 400 mg daily limit | 50% | 40% |
| Peak level, 45 minutes in | 182 mg | 146 mg |
| Time to fall below 40 mg | 13 and a half hours | 11 and a half hours |
| Latest for an 11 pm bedtime | 9:36 am | 11:24 am |
| Servings to reach 400 mg | 2 | 2.5 |
What the numbers mean
Monster looks like the bigger drink and Celsius is the stronger one. The Celsius can is smaller by more than a quarter and holds more caffeine, because it is nearly twice as concentrated.
In practice the two behave alike. Both are morning drinks if you plan to sleep at a normal hour, and either one on top of two coffees takes a day close to the 400 mg limit.
The full page for each
Common questions
Which has more caffeine, Celsius or Monster?
Celsius. One 12 oz can holds 199 mg, against 160 mg in one 16.9 oz can of Monster: about 25% more.
Which is the better choice late in the day?
Monster. For an 11 pm bedtime one serving can be had as late as 11:24 am, against 9:36 am for Celsius.
How many can I have in a day?
Going by the 400 mg daily limit for healthy adults: about 2 servings of Celsius or 2 of Monster, if that is the only caffeine you have. Anything else with caffeine in it counts toward the same limit.
More comparisons
Look it up another way
Where these numbers come from
Every figure is calculated with the model the Cira app uses: caffeine peaks 45 minutes after you take it and halves every 5.7 hours, a typical value for healthy adults. The 40 mg sleep line is a working threshold of the model, and the 400 mg daily limit is the figure used by the European Food Safety Authority and the US FDA. These are averages. Smoking, pregnancy, the contraceptive pill and some medicines change how fast you clear caffeine. How the numbers are worked out.
