Loading...
Free UK delivery on orders over £30 • Click & Collect available
This website contains products intended for adults only. By entering you confirm you are aged 18 or over.
By entering this site you agree to our Terms of Service and Privacy Policy.
Loading...
One of the most common questions when switching from smoking to vaping. The maths is not straightforward but there are reliable rules of thumb that make choosing your nic salt strength much easier.
Quick Answer: There is no exact equivalence because nicotine absorption differs significantly between smoking and vaping. As a rough guide, a 2ml pod of 20mg nic salt contains approximately 40mg of total nicotine, which is broadly comparable to a pack of 20 cigarettes in terms of total nicotine content. In practice, the feel and satisfaction depend far more on how you vape, your device wattage and your individual physiology than on the mg numbers alone.
The question of how nic salt strength compares to cigarettes comes down to two different kinds of nicotine delivery that work very differently in the body.
A cigarette contains approximately 8mg to 12mg of nicotine in the tobacco. However, combustion is an extremely inefficient delivery system. A large proportion of the nicotine burns off before you ever inhale it. Research consistently estimates that a smoker absorbs only around 1mg to 1.5mg of nicotine per cigarette, despite the tobacco containing far more. If you smoke 20 cigarettes a day your body is receiving roughly 20mg to 30mg of absorbed nicotine per day in total.
Vaping is a more efficient delivery system. When you vape nic salt e-liquid, a higher proportion of the nicotine in the bottle actually reaches your bloodstream compared to what a cigarette delivers from its tobacco content. This is why nic salt strengths that look modest on the label can feel satisfyingly strong in practice.
The most widely used rule of thumb among UK vape retailers is that 1ml of 20mg nic salt e-liquid contains roughly the same total nicotine as 20 cigarettes. This is based on the estimated 1mg absorbed per cigarette, with 20mg total nicotine in 1ml of e-liquid. The comparison is imprecise because absorption rates from vaping vary by device, puff length and inhale depth. It gives a workable starting point for choosing your strength.
| Daily Cigarettes | Estimated Daily Nicotine Absorbed | Recommended Starting Strength | Rough Daily E-Liquid Use |
|---|---|---|---|
| 5 or fewer | ~5mg | 5mg to 10mg nic salt | 0.5ml to 1ml per day |
| 5 to 10 | ~5mg to 10mg | 10mg nic salt | 1ml to 2ml per day |
| 10 to 15 | ~10mg to 15mg | 10mg to 20mg nic salt | 1ml to 2ml per day |
| 15 to 20 | ~15mg to 20mg | 20mg nic salt | 1ml to 2ml per day |
| 20 or more | ~20mg or more | 20mg nic salt | 2ml to 3ml per day |
These are rough estimates. Your actual e-liquid consumption will depend on your pod kit, how frequently you vape and the length of each session. Most vapers find that a 10ml bottle of 20mg nic salt lasts two to four days, which is broadly consistent with the nicotine intake of a pack-a-day smoker across that period.
Nicotine absorption from vaping is influenced by several variables that make a precise equivalence impossible to calculate. The mg figures on the bottle tell you the concentration of nicotine in the liquid. They do not tell you how much of that nicotine your body will actually absorb in a given session.
A pod kit running at 10W vaporises less e-liquid per puff than one running at 18W. More vapour per puff means more nicotine per puff, even at the same mg strength. This is why 20mg in a low-wattage pod kit feels very different from 20mg in a slightly more powerful setup.
Longer puffs and deeper inhales deliver more nicotine. MTL (mouth-to-lung) vaping, which mimics a cigarette draw, tends to produce shorter, controlled puffs. The nicotine delivery from two vapers using the same device and the same e-liquid can differ significantly based on how each person draws.
The benzoic acid formulation in nic salts allows nicotine to cross into the bloodstream within 6 to 10 seconds. This is comparable to a cigarette. Freebase nicotine absorbs more slowly. This speed is part of why nic salts feel satisfying at concentrations that look modest on paper.
Nicotine metabolism differs between people. Some individuals process nicotine faster and need more frequent vaping to maintain steady levels. Others metabolise it more slowly and find a moderate amount goes a long way. Body weight, genetics and how long you have been a smoker all play a role.
The practical takeaway: do not stress the exact mg maths. Use the cigarette count table above as a starting point, pay attention to how your body feels in the first 48 hours. Adjust your strength based on cravings and comfort rather than the numbers on the label.
| Product | Total Nicotine Content | Estimated Absorbed Nicotine | Typical Duration |
|---|---|---|---|
| 1 cigarette | ~10mg in tobacco | ~1mg absorbed | 5 to 7 minutes |
| 20 cigarettes (pack) | ~200mg in tobacco | ~20mg absorbed | One day for a pack-a-day smoker |
| 2ml pod at 20mg | 40mg total in pod | Varies by device and puff style | Roughly one day for a heavy vaper |
| 10ml bottle at 20mg | 200mg total in bottle | Varies by device and puff style | 2 to 4 days for most pod kit users |
| 10ml bottle at 10mg | 100mg total in bottle | Varies by device and puff style | 3 to 6 days for most pod kit users |
We stock a full range of TRPR-compliant nic salts at 5mg, 10mg and 20mg from the UK's leading brands. Visit our Wolverhampton store or shop online with fast UK delivery.
Our complete library covers every question about nic salts for UK vapers including strengths, devices, comparisons, safety and more.
Roughly, yes, in terms of total nicotine content. A 2ml pod of 20mg nic salt contains 40mg of total nicotine, which is comparable to a pack of 20 cigarettes if you estimate around 1mg to 2mg absorbed per cigarette. However the delivery mechanisms differ enough that this comparison should be used as a starting guide rather than a precise calculation.
Approximately, for moderate smokers, yes. 10mg nic salt in a pod kit should deliver a comparable level of nicotine satisfaction to around 10 cigarettes per day worth of absorbed nicotine. Because nic salts absorb faster than cigarette smoke, 10mg often feels adequate for smokers who were on 10 to 15 cigarettes a day, though some heavier smokers will need to go up to 20mg.
This usually means your strength or your device is not right. If 10mg is not satisfying, try 20mg. If you are already on 20mg and still feel unsatisfied, check your pod kit is operating at the right wattage and coil resistance. Some vapers also find it takes a week or two for their body to fully adjust to the different delivery mechanism of vaping versus smoking.
Our team at 39 Birmingham New Road, Wolverhampton, WV4 6BL are experienced vapers who can advise on the right strength and device for your situation. Call us on 01902 444090 or visit in store for a personal recommendation.