PauseCafé › Caffeine content › Energy drink
How much caffeine is in an energy drink?
80 mg
For a standard 250 ml can, or 32 mg per 100 ml. That is the equivalent of an espresso. The large 500 ml can holds 160 mg, and that is where the count slips.
Why such a wide range?
Four factors explain almost all of it.
Can size, and little else. This is the peculiarity of the category: the concentration is nearly always the same, 32 mg per 100 ml. What changes is the container. A large can is two doses, not one.
Concentrated shots. Sold in small formats, they often hold 200 mg in 60 ml — the EFSA single-dose mark, in two mouthfuls.
Guarana, which adds up. Some formulas add guarana, whose caffeine does not always appear in the stated total. Real content can then exceed the label.
Regulatory wording. In Europe, any drink above 150 mg per litre must carry the notice « High caffeine content ». It is a useful marker when the exact figure is not given.
By can size
| Size | Volume | Caffeine |
|---|---|---|
| Standard can | 250 ml | 80 mg |
| Large can | 500 ml | 160 mg |
| 330 ml format | 330 ml | 106 mg |
| Energy shot | 60 ml | 200 mg |
Values for the main brands sold in Europe, where content is capped at 32 mg per 100 ml. Concentrated shots, sold in pharmacies and gyms, fall outside that format and go much higher.
Two large cans in a day is 320 mg — four fifths of the EFSA daily mark, without a single coffee. It is the most commonly underestimated total, because an energy drink is not perceived as « a coffee ».
A can equals how many coffees?
A standard can equals one espresso. A large 500 ml can equals two espressos, or one and a half filter coffees.
The gap with coffee is not in the dose but in the way it is drunk: an espresso goes down in a minute, a can over half an hour, often alongside something else.
| Drink | Volume | Caffeine |
|---|---|---|
| Standard can | 250 ml | 80 mg |
| Large can | 500 ml | 160 mg |
| Espresso | 30 ml | 77 mg |
| Filter coffee | 240 ml | 108 mg |
| Green tea | 240 ml | 30 mg |
Two large cans in a day is 320 mg — four fifths of the EFSA mark, without a single coffee.
And at bedtime, how much is left?
An 80 mg can at 5 pm still leaves about 34 mg at 11 pm. A large can at the same hour leaves 68, two thirds of the 100 mg mark EFSA uses for sleep.
This decline follows caffeine's half-life, on average 5 hours in a healthy adult.
The caffeine at bedtime calculator runs this for every drink of your day.
Frequently asked
Does an energy drink have more caffeine than coffee?
Not at comparable volume, but often more in total. A 250 ml can holds 80 mg, like an espresso. A 500 ml can holds 160 mg, more than a mug of filter coffee.
What does « high caffeine content » mean on the label?
It is a mandatory notice in Europe for any drink above 150 mg of caffeine per litre. It must come with the exact content and the wording « Not recommended for children or pregnant or breast-feeding women ».
Does guarana count in the stated caffeine?
Not always. Guarana naturally contains caffeine, sometimes accounted for separately from added caffeine. Where a formula contains it, real content can exceed the printed figure.
Are energy shots more concentrated?
Far more. A 60 ml shot commonly holds 200 mg, the EFSA single-dose mark in a few mouthfuls. The small format misleads: small does not mean light.
Can you mix energy drinks and coffee?
Nothing forbids it, but the total climbs fast: a coffee in the morning, two cans through the day, and the 400 mg mark is already close. The issue is not the mix, it is the daily total.
Other drinks
⚕️ Wellbeing information. The figures on this page are typical orders of magnitude, not individual measurements. They are not medical advice or a diagnosis. If you have questions about your intake, trouble sleeping, or any concern about pregnancy or medical treatment, speak to a healthcare professional.
Do not lose count
Cans, coffees, teas: PauseCafé adds them all and shows where you stand against the daily mark.
