Pre-workout
Caffeine in Pre-Workout (typical serving)
200mg
per serving
≈ 2 coffees≈ 3 Red Bulls50% of FDA daily max
Is that a lot?
Pre-Workout (typical serving) is 50% of the FDA’s recommended daily maximum, in a single serving.
Green tea
Espresso
Red Bull
Coffee
Pre-Workout (typical serving)
FDA daily max · 400mg
Before bed
When can I drink Pre-Workout (typical serving) and still sleep?
Your Pre-Workout (typical serving) cutoff
You drink it at
Bedtime
Pre-Workout (typical serving) · 200 mg · assuming an average ~5 h half-life
At bedtime
66 mg
may delay sleep
Latest safe Pre-Workout (typical serving): 1:00 PM
How much caffeine is in Pre-Workout (typical serving)?
A typical pre-workout scoop carries around 200 mg of caffeine, though brands swing widely from 150 to 350 mg. It's engineered to flood your system fast for a hard training session, so the kick lands quickly and strong.
| Serving | Caffeine | Sugar |
|---|---|---|
| serving | 200 mg | 0 g |
Wide range ~150–350 mg per scoop depending on brand.
Will Pre-Workout (typical serving) affect your sleep?
From 200 mg, pre-workout takes roughly ten hours to fall under 50 mg, which is why an evening gym session can wreck your sleep. If you train late, a low-stim or stim-free formula is the kinder choice for bedtime.
Heads up
At 200 mg, a second Pre-Workout (typical serving) in a day pushes you toward the FDA’s 400 mg ceiling — and that’s before any coffee or tea. Log everything in the calculator to see your real daily total.
Source: Manufacturer labels (range)