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Vape Puffs to Cigarettes Calculator

Enter your puffs a day, the strength on your liquid and your kind of vape, or go by a disposable's labelled puff count. The page turns that into nicotine, then into cigarettes. It answers with a range, because in lab and user studies one puff carried very different amounts depending on the device and the draw. One cigarette counts as 1 to 1.5 mg of nicotine absorbed.

Count by
Kind of vape

Some devices count puffs for you. If yours does not, count one hour and multiply by your waking hours.

Cigarettes' worth of nicotine a day

8to30

300 puffs a day at 20 mg/mL from a disposable carry about 12 to 30 mg of nicotine into the body: the nicotine of 8 to 30 cigarettes.

12 to 30mg
Nicotine absorbed a day
0.04 to 0.10mg
One puff carries
10 to 39
Puffs to one cigarette

A range, not a reading. What one puff delivers moves with the device, the power and how long you draw, and the measurements behind this page disagree by that much. How puffs become cigarettes

Want the same numbers by the week, month and year? The vape nicotine intake calculator runs on the same measurements.

Where one puff lands

Nicotine absorbed from one puff at 20 mg/mL, on a fixed scale, for each kind of device, with one cigarette at the end for comparison. Each bar runs from the lowest to the highest published measurement.

Disposable0.04 to 0.10 mg
Pod or cartridge0.03 to 0.13 mg
Tank0.06 to 0.21 mg
Sub-ohm or rebuildable0.3 to 0.5 mg
One cigarette1 to 1.5 mg
0.01 mg 0.1 mg 1 mg

How puffs become cigarettes

Four steps, and none of the numbers in them is ours. First, how much of the liquid's nicotine one puff carries, in microlitres, for your kind of device. That is the lowest-to-highest spread of published measurements, each worked out by division alone: for the machine studies, nicotine in 15 puffs ÷ 15 ÷ the liquid's measured strength; for the study of people vaping their own devices, liquid used in 15 puffs ÷ 15 ÷ the liquid's density, taken from its measured glycerol and propylene glycol mix at 1.261 and 1.036 g/mL. That gives 2.1 to 5.4 microlitres for a disposable (five devices, Talih and colleagues, 2022), 1.3 to 7.2 for a pod or cartridge (JUUL in three studies, two cartridge users), 3.0 to 11.1 for a tank (seven users) and 16.1 to 26.7 for a sub-ohm or rebuildable device (three users).

Second, that volume × your strength in mg/mL is the nicotine a puff carries, and 93.8% of it counts as absorbed: the average share of inhaled nicotine that stayed in the body in St Helen and colleagues' 2016 study. Third, × your puffs a day. With a device label, puffs a day is the labelled puff count ÷ the days one device lasts, and when you give the liquid volume, neither end can pass the nicotine in the liquid you finish in a day, times the same 93.8%.

Fourth, cigarettes: the low end divides by 1.5 mg and the high end by 1 mg, the range for the systemic dose per cigarette in Benowitz, Hukkanen and Jacob's review. Puffs to one cigarette runs the other way: 1 mg over the strongest puff, 1.5 mg over the weakest. A percentage is read the way labels read it, 1% = 10 mg/mL.

What this does not do: it measures no puff, knows nothing about how long you draw, and says nothing about harm. The machine studies used 4-second puffs; people's own puffs vary, and one study found 15-puff yields moving more than 50-fold with puff length and power. The range is as wide as the evidence, which is the point of it.

Where this comes from

  1. 1. Electrical features, liquid composition and toxicant emissions from 'pod-mod'-like disposable electronic cigarettes — nicotine in 15 puffs and measured strength, five disposables and JUUL Talih et al., Tobacco Control, 2022 (PubMed Central)
  2. 2. Characteristics and toxicant emissions of JUUL electronic cigarettes — 2.07 mg of nicotine in 15 puffs at 68.6 mg/mL Talih et al., Tobacco Control, 2019 (PubMed Central)
  3. 3. A comparison of the electrical characteristics, liquid composition, and toxicant emissions of JUUL USA and JUUL UK e-cigarettes Talih et al., Scientific Reports, 2020 (PubMed Central)
  4. 4. Nicotine delivery, retention and pharmacokinetics from various electronic cigarettes — liquid used in 15 puffs by 13 people on their own devices; 93.8% of inhaled nicotine retained St Helen et al., Addiction, 2016 (PubMed Central)
  5. 5. Effects of user puff topography, device voltage, and liquid nicotine concentration on electronic cigarette nicotine yield Talih et al., Nicotine & Tobacco Research, 2015 (PubMed Central)
  6. 6. Nicotine chemistry, metabolism, kinetics and biomarkers — systemic dose from cigarette smoking, 1 to 1.5 mg per cigarette Benowitz, Hukkanen & Jacob, Handbook of Experimental Pharmacology, 2009 (PubMed Central)
  7. 7. Glycerol — density 1.2613 g/cm³ at 20 °C PubChem, US National Library of Medicine
  8. 8. Propylene glycol — density 1.0361 g/cm³ at 20 °C PubChem, US National Library of Medicine
  9. 9. E-cigarettes: regulations for consumer products — tanks of no more than 2 mL, e-liquid of no more than 20 mg/mL UK Government guidance, GOV.UK
  10. 10. Vaping to quit smoking — vaping is less harmful than smoking and is not risk-free NHS Better Health

Nothing on this page is medically reviewed and nothing above measures anything about you — it explains a calculation. Where a number here is our own judgement rather than a published figure, the note says so and cites nothing; where the health bodies disagree, it carries the disagreement. Method last checked 28 September 2026.

Frequently Asked Questions

How many puffs of a vape equal one cigarette?
It depends on the strength and the device, and the honest answer is a range. At 20 mg/mL from a disposable, the published measurements this page uses put one cigarette's nicotine at about 10 to 39 puffs. At 50 mg/mL from the same kind of device it is about 4 to 16 puffs. A cigarette here is 1 to 1.5 mg of nicotine absorbed, the range in Benowitz, Hukkanen and Jacob's pharmacology review.

How many cigarettes is a 600-puff disposable?
UK law limits a disposable to 2 mL of liquid at no more than 20 mg/mL, so a 600-puff device holds at most 40 mg of nicotine. Puff by puff at the measured rates, 600 puffs come to about 15 to 38 cigarettes' worth of nicotine absorbed. The top of that range is held down by the 40 mg in the liquid: nothing can come out of the device that was not in it.

Why does the calculator give a range instead of one number?
Because the measurements disagree, and picking one would hide that. In one lab study, 15 puffs from a single type of e-cigarette cartridge gave nicotine yields that varied more than 50-fold with puff length, power and liquid strength. Devices differ too: five disposables tested side by side carried 2.1 to 5.4 microlitres of liquid's nicotine a puff. And a cigarette itself delivers 1 to 1.5 mg, not a fixed amount. The page carries all three spreads into the answer.

Is a 5% vape really 50 mg/mL?
That is how labels read it: 5% is sold as 50 mg of nicotine per mL, and 2% as 20 mg/mL. Lab tests do not always agree with the label. JUUL's 5% pods measured 65 to 69.8 mg/mL in three studies, and three of five disposables labelled 5% measured 75.4 to 86.9 mg/mL. If you know your liquid runs stronger than its label, enter the stronger figure.

Does the same nicotine mean the same harm as smoking?
No, and this page does not try to measure harm. It compares nicotine, the substance that keeps the habit going. The NHS says vaping is less harmful than smoking and is not risk-free, and that it has not been around long enough to know the risks of long-term use. What this page can tell you is how much nicotine your day carries, which is the number that matters when you plan to cut down or stop.

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Burnout counts vaping in the same units as smoking

The puffs you stop taking become a count of days and money kept, on one screen.

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