If you have landed here from a search, you probably want a single number. The honest answer is that there is not one, and any page that gives you a clean conversion is guessing. What follows is why the comparison does not work, and what to look at instead when you are choosing a nicotine strength.
The short answer
There is no reliable way to convert vape puffs into cigarettes. Puff counts are manufacturer estimates produced under fixed laboratory conditions, a puff is not a fixed dose, and how much nicotine a person actually absorbs varies enormously between individuals. Two people using the same device on the same day can take in very different amounts.
What you can do is compare nicotine strength, understand what the UK limits are, and pick a strength that suits you. That is a far more useful question than puff equivalence, and it is the one the rest of this guide answers.
Why puff counts do not convert into cigarettes
Puff counts are estimates, not measurements of your use
The puff figure printed on a device is produced by a machine drawing consistent, timed puffs under set conditions. It is a useful way to compare one device against another, and manufacturers arrive at it in broadly similar ways. It is not a promise about how long the device will last for you. Longer or harder draws will get you fewer puffs than the stated figure; short, light draws may get you more. We have written separately on how long 600 puffs actually lasts in practice, which goes into this in more detail.
A puff is not a fixed dose
This is the part most comparisons skip. A cigarette is a reasonably standardised object: it burns for a set time and delivers a broadly consistent amount of smoke. A vape puff is not standardised at all. Its length, the airflow setting, the power the device is running at and the coil inside all change how much aerosol is produced, and therefore how much nicotine is carried in it. A one second puff and a four second puff on the same device are not the same dose.
Because of that, "200 puffs equals X cigarettes" style figures are not a calculation. They are an assumption about puff length dressed up as arithmetic.
What is in the product is not what you absorb
Nicotine content and nicotine absorbed are two different things, for both cigarettes and vapes. Only a fraction of the nicotine present in any product reaches the bloodstream, and the fraction differs by product type, by how it is used and by the person using it. Comparing the nicotine listed on a bottle with the nicotine listed for a cigarette therefore compares two numbers that do not mean the same thing.
This is the single biggest reason equivalence tables fall apart, and it is why we do not publish one.
What the UK rules actually cap
UK law sets hard limits on nicotine-containing vaping products, and knowing them makes the strength question much simpler:
- Nicotine-containing e-liquid is capped at 20 mg/ml (2%).
- Prefilled pods and tanks are capped at 2 ml of e-liquid.
- Bottles of nicotine-containing e-liquid are capped at 10 ml.
So the strongest legal nicotine strength you can buy in the UK is 20 mg/ml, whatever the device. If you see a product advertised above that, treat it as a warning sign about the seller rather than a stronger option.
Nicotine strength: what 10 mg and 20 mg mean
Strength is given either in milligrams per millilitre (mg/ml) or as a percentage. They are the same measure written two ways: 10 mg/ml is 1%, and 20 mg/ml is 2%. Most UK prefilled devices are sold at 20 mg/ml. Bottled e-liquid for refillable kits is commonly available at 3, 6, 10, 12 and 20 mg/ml, and at 0 mg/ml with no nicotine at all.
Freebase and nicotine salt are not interchangeable
Two liquids at the same stated strength can feel quite different. Nicotine salt e-liquid is formulated to be smoother at higher strengths, which is why almost all 20 mg/ml prefilled pods use it. Freebase nicotine tends to give a firmer throat sensation, so it is more commonly used at lower strengths in refillable kits. If you are choosing between them, our guide to the difference between nicotine salts and freebase covers which suits which kind of device. You can also browse our nicotine salt e-liquids and the wider e-liquid range to see the strengths available.
A more useful way to think about it
Instead of asking how many puffs equal a cigarette, it is more practical to ask three questions:
- How strong does it need to feel? If a strength leaves you puffing constantly, it is probably too low for you. If it feels harsh or unpleasant, it is probably too high.
- How much liquid am I getting through? Millilitres per day is a far more stable measure than puffs, because it is not affected by how long your draws are.
- Does the device suit how I use it? A device you refill yourself gives you control over strength; a prefilled one does not.
Tracking millilitres per day for a week will tell you more about your own use than any equivalence table.
Choosing between prefilled and refillable
Prefilled devices come ready to use and are almost always supplied at 20 mg/ml, so the strength decision is made for you. Refillable kits let you buy e-liquid separately and choose the strength yourself, including stepping it down over time if that is what you want to do. If you are weighing the two up, we have set them side by side in our guide to prefilled and refillable kits compared.
You can browse our prefilled pod kits or our refillable vape kits to see what each involves.
Frequently asked questions
Is a 20 mg vape the same as a cigarette?
No. 20 mg/ml describes the concentration of nicotine in the liquid, not a dose. A cigarette is not measured in mg/ml at all, so the two figures are not comparable.
How many puffs are in a cigarette?
Estimates vary widely and depend on how the cigarette is smoked. Even where a figure is quoted, it does not help with the conversion, because a cigarette puff and a vape puff do not deliver comparable amounts of nicotine.
Why do puff counts on devices vary so much?
Because they depend on liquid capacity, coil resistance and the power the device runs at, and because they are measured under fixed conditions that will not match your own use. Treat them as approximate and comparative rather than exact.
Should I start on 20 mg or something lower?
That depends on the device and on you. Prefilled devices are generally only sold at 20 mg/ml. With a refillable kit you have the full range available, and many people find a mid strength suits a mouth-to-lung device better. We cannot advise on nicotine intake, so if you are unsure, speak to a healthcare professional.
Does a higher puff count mean more nicotine overall?
Not necessarily. A higher puff count usually reflects a larger liquid capacity or a more efficient coil. The strength of the liquid is capped at 20 mg/ml either way.
A note on stopping smoking
Vape Offers is a retailer. We do not make claims about vaping and stopping smoking, and nothing on this page should be read as advice about it. If you want support to stop smoking, speak to your GP, a pharmacist or your local NHS stop smoking service, who can talk you through the options properly.
The bottom line
Puff counts are useful for comparing devices to each other and useless for comparing them to cigarettes. Nicotine strength, capped at 20 mg/ml in the UK, is the number that actually tells you something, and millilitres per day is the measure worth tracking. Anyone offering you a tidy conversion is filling in a gap in the evidence with a guess.
You must be 18 or over to buy vaping products in the UK. This product contains nicotine, which is a highly addictive substance.
