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UPTIME Energy has 142mg of caffeine per 12 oz can, per Caffeine Informer. That works out to about 11.8mg per fluid ounce, a bit under brewed coffee at 11.9mg per ounce, though the bigger serving can close the gap. Against the two standards everyone actually knows, one 12 oz can equals about 1.5 cups of brewed coffee or 2.3 shots of espresso.
UPTIME Energy vs coffee and espresso
| Drink | Serving | Caffeine | Per fl oz | Servings to reach 400mg |
|---|---|---|---|---|
| UPTIME Energy | 12 oz can | 142mg | 11.8mg | 2.8 |
| Brewed coffee | 8 oz cup | 95mg | 11.9mg | 4.2 |
| Espresso | 1 oz shot | 63mg | 63.0mg | 6.3 |
How the number behaves
Energy drinks list an exact caffeine number because caffeine is a measured additive: every 12 oz can of UPTIME Energy carries the same 142mg, unlike brewed coffee, where the beans, dose, and brew time move the figure around. That predictability is the one real advantage a can has over a cup: you always know exactly what you drank.
The mistake people make is stacking. One 12 oz can is 36 percent of the 400mg FDA reference, so a can on top of a normal coffee habit adds up faster than it feels like it should. Run the math on your whole day, not the single can.
Where to find it
Check UPTIME Energy prices on Amazon
Compare it
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.
FAQ
How much caffeine is in UPTIME Energy? 142mg per 12 oz can, per Caffeine Informer. That is about 11.8mg per fluid ounce.
Is UPTIME Energy stronger than coffee? Ounce for ounce no: UPTIME Energy carries about 11.8mg per fluid ounce versus 11.9mg for brewed coffee, and a full 12 oz can delivers 142mg versus 95mg in an 8 oz cup.
How many servings of UPTIME Energy reach 400mg of caffeine? About 2.8 of the 12 oz can servings reach the 400mg daily amount the FDA cites for healthy adults.
Sources: the UPTIME Energy figure (142mg per 12 oz can) is Caffeine Informer (source). Brewed coffee (95mg per 8 oz) and espresso (63mg per 1 oz) reference values are from USDA FoodData Central (source).
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.