Energy drink
Caffeine in Red Bull (8.4 oz)
80mg
per 8.4 oz
≈ 1 coffee≈ 1 Red Bull20% of FDA daily max
Is that a lot?
Red Bull (8.4 oz) is 20% of the FDA’s recommended daily maximum, in a single 8.4 oz.
Green tea
Espresso
Red Bull
Red Bull (8.4 oz)
Coffee
FDA daily max · 400mg
Before bed
When can I drink Red Bull (8.4 oz) and still sleep?
Your Red Bull (8.4 oz) cutoff
You drink it at
Bedtime
Red Bull (8.4 oz) · 80 mg · assuming an average ~5 h half-life
At bedtime
26 mg
close to optimal
Latest safe Red Bull (8.4 oz): 7:37 PM
How much caffeine is in Red Bull (8.4 oz)?
A standard 8.4 oz Red Bull gives wings with about 80 mg of caffeine, roughly the same as a strong cup of coffee in a small can. The 27 grams of sugar add to the lift, though larger 12 and 16 oz cans climb much higher.
| Serving | Caffeine | Sugar |
|---|---|---|
| 8.4 oz | 80 mg | 27 g |
Standard can; 12 oz ≈ 114 mg, 16 oz ≈ 151 mg.
Will Red Bull (8.4 oz) affect your sleep?
From 80 mg, a Red Bull takes around three hours to fall under 50 mg, so a mid-afternoon can is usually clear by bedtime. A late-day or evening can, however, can still be working when you want to sleep.
Source: Manufacturer label