Why vape labels show nicotine two different ways
Buy a disposable vape in Germany, Czechia or Sweden and you will usually see the nicotine level written as a percentage: 2%, 1.8% or 0%. Order the same kind of device from a supplier that prints its data sheets in milligrams and the same liquid suddenly reads 20 mg/ml. Both numbers describe the same thing, which is why shoppers regularly think they have bought two different products.
In the EU the legal ceiling for nicotine in e-liquid is 20 mg/ml, set by the Tobacco Products Directive (TPD). That ceiling is also the reason almost every disposable sold legally in Europe is sold as "2%" — it is the maximum strength allowed, not a premium tier. Once you know the conversion, the whole label becomes readable at a glance.
The conversion rule: 1% equals 10 mg per ml
Nicotine percentage is simply a weight-per-volume figure expressed in parts per hundred. One millilitre of liquid weighs roughly one gram, so 1% of that millilitre is 0.01 g, which is 10 mg. The rule never changes:
- 0% = 0 mg/ml — nicotine-free
- 0.5% = 5 mg/ml
- 1% = 10 mg/ml
- 1.8% = 18 mg/ml (common in salt-based disposables)
- 2% = 20 mg/ml — the EU maximum
| Label on the box | mg per ml | Typical device |
|---|---|---|
| 0% | 0 mg/ml | Nicotine-free disposables |
| 1% | 10 mg/ml | Lower-strength pods and disposables |
| 1.8% | 18 mg/ml | Mid-range disposables |
| 2% | 20 mg/ml | Most EU disposables (legal maximum) |
What 2% actually means on a disposable vape
Take a typical 2% disposable with 2 ml of liquid. Two millilitres at 20 mg/ml is 40 mg of nicotine in the whole device. A 2 ml bottle of 2% liquid therefore carries the same total nicotine as a pack of twenty cigarettes, although the way the body absorbs it is very different — vapour is absorbed through the mouth and upper airway rather than the lungs, and absorption is slower and less complete than with smoke.
That is why "how many puffs equals a cigarette" has no clean answer. A device rating 20,000 puffs can be puffed gently for weeks or drained in days depending on how long each draw is. If you are trying to work out where you sit, our guide to how much nicotine you actually absorb when vaping goes through the absorption side in detail.
Percentage tells you strength, not capacity
The most common mistake is reading "2%" as "2 ml" or as a measure of how long the device lasts. It is neither. Percentage is a concentration; capacity is the millilitre figure printed next to it; and puff count is a rough marketing estimate of endurance. A 20 mg/ml device with a 10 ml tank holds far more nicotine overall than a 20 mg/ml device with a 2 ml tank, even though the percentage on both boxes is identical.
When you compare two devices, always line up three numbers: concentration (%), capacity (ml) and rated puffs. Only then does the comparison mean anything.
Which strength should you pick in the EU
Because 2% is a legal ceiling rather than an upgrade, the useful question is whether you actually want the strongest option available. Broad rules that match what most adult customers report:
- Heavy smokers (20+ cigarettes a day) generally start at the maximum, 2%, and step down once the switch feels stable.
- Light or social smokers often do better at 1% or 1.8%, where the throat hit is gentler and over-consumption is less likely.
- Anyone cutting down can move to a lower percentage, or mix devices, rather than trying to puff less of a strong one.
- People who want no nicotine at all can choose from the full 0% nicotine range, which in Germany and Czechia is sold without the TPD nicotine ceiling applying.
If you are unsure whether the strongest devices are too much for you, read is 20 mg nicotine too strong? before ordering, and use our general nicotine strength guide as a starting map.
Reading the rest of the label
Nicotine concentration is only one of several numbers on a compliant EU disposable. The same panel normally lists:
- The nicotine form — freebase or nicotine salt (salts are smoother at high strength)
- Liquid capacity in millilitres
- Battery capacity in mAh
- A batch number and the 18+ warning
- An ingredient list, usually propylene glycol, vegetable glycerine, flavourings and nicotine
Our walk-through of how to read a vape label explains each field, and what is in vape juice covers the ingredient side.
Frequently asked questions
Is 2% nicotine the same as 20 mg?
Yes. In e-liquid, 2% by weight per volume equals 20 mg per millilitre. They are two ways of writing one figure, and 20 mg/ml is the maximum allowed under EU TPD rules.
Is 2% stronger than 5%?
Yes — 2% is 20 mg/ml and 5% is 50 mg/ml, so 5% is two and a half times stronger. Products sold as 5% are made for markets such as the United States; they cannot be legally sold as nicotine products inside the EU, where 20 mg/ml is the ceiling.
How much nicotine is in a whole disposable?
Multiply concentration by capacity. A 2 ml device at 20 mg/ml contains about 40 mg total; a 10 ml device at the same strength contains about 200 mg. The percentage stays the same, only the total changes.
Does a lower percentage last longer?
No. Percentage is strength, not capacity. How long a device lasts depends on liquid volume, battery size and how heavily you puff — not on the nicotine number. If you want a longer-lasting device, compare the puff rating and pick a higher-capacity model from the big puffs selection.
Can I mix strengths in one order?
Yes, and many customers do — a 2% for strong cravings and a 1% or 0% for the rest of the day. Orders to Germany, Czechia and Sweden can combine products freely, and our 2% nicotine and 0% nicotine collections make the split easy to manage in one basket — for example a 2% high-capacity device for the day and a nicotine-free one for the evening.
Where is 2% the legal maximum?
Across the whole EU, including Germany, Czechia and Sweden, 20 mg/ml is the cap for nicotine-containing e-liquid. Devices rated above that can only be sold as nicotine-free in the EU.
Getting the conversion straight makes the rest of a vape order much simpler: read the percentage as strength, read the millilitres as capacity, and treat the puff count as a rough guide. If you want to compare specific models side by side, the devices in our disposable range all list their concentration and capacity on the product page.
