How much caffeine is in 5-Hour Energy (Regular)?
中文：5-Hour Energy 提神液
Caffeine content
200 mg
per 1.93 fl oz (57 ml)
About this drink
5-Hour Energy's appeal is the concentrated dose — 200 mg caffeine in a 2oz shot. No carbonation, fast to drink, no sugar (in the regular formula). Functionally equivalent to a Celsius without the volume.
Ingredients: Caffeine, taurine, B vitamins, L-tyrosine, malic acid
When will it clear your system?
200 mg consumed in <30 seconds gives a fast spike. Not recommended after 12pm if sleep is important.
Based on caffeine's 5-hour half-life, a 5-Hour Energy (Regular) consumed at 2:00 PM drops below the sleep-safe threshold (~20 mg) by approximately 06:37 the same evening.
Where this fits in a daily limit
That's roughly 100% of the 200 mg pregnancy guideline and 50% of the 400 mg general adult daily limit. One drink uses most of a pregnancy-safe day.
See our pregnancy caffeine guide or half-life sleep math for the deep dive.
How it compares
| Drink | Caffeine |
|---|---|
5-Hour Energy (Regular) 5-Hour Energy | 200 mg |
| Celsius (12oz can) Celsius | 200 mg |
| Red Bull (8.4oz can) Red Bull | 80 mg |
| Monster Energy (16oz can) Monster | 160 mg |
Track your caffeine automatically
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Learn more about SipNoteFrequently asked questions
How much caffeine is in a 5-Hour Energy (Regular)?
A 1.93 fl oz (57 ml) 5-Hour Energy (Regular) contains approximately 200 mg of caffeine. Actual values may range from 200 to 200 mg depending on preparation and source variation.
Is 5-Hour Energy (Regular) safe during pregnancy?
The current ACOG and NHS guideline is under 200 mg of caffeine per day during pregnancy. A single 5-Hour Energy (Regular) uses most of the daily pregnancy allowance. Always consult your obstetrician for personalized advice.
When should I stop drinking 5-Hour Energy (Regular) for sleep?
Caffeine has a 5-hour half-life. To have under 20 mg circulating at bedtime (the typical sleep-safe threshold), stop drinking 5-Hour Energy (Regular) about 17 hours before sleep. 200 mg consumed in <30 seconds gives a fast spike. Not recommended after 12pm if sleep is important.
5-Hour Energy (Regular) vs Celsius (12oz can) — which has more caffeine?
5-Hour Energy (Regular) contains 200 mg per serving; Celsius (12oz can) contains 200 mg per 12 fl oz (355 ml). Celsius (12oz can) is the stronger of the two.
Does 5-Hour Energy (Regular) keep you awake?
200 mg is high caffeine. For sleep-sensitive people, 5-Hour Energy (Regular) after noon may affect sleep onset and quality.
Caffeine values shown are typical for the listed serving size. Actual content varies by preparation, brewing method, batch, and brand reformulation. Not medical advice — consult a healthcare provider for personalized guidance.