How much nicotine is in a vape depends on two numbers printed on the package: the strength of the liquid (percent or milligrams per milliliter) and how much liquid the device holds. In the United States, retail data show that most e-cigarettes sold are 5% nicotine strength or higher, which is 50 mg per milliliter. In Great Britain, the law caps liquid at 20 mg per milliliter and tanks at 2 milliliters. This guide explains how to read those numbers, what the sales data shows, and why a per-puff figure is much harder to pin down.
Key finding: strength is printed as a percent or mg/mL
Vape packaging states nicotine in one of two ways. A percentage states the strength as the maker labels it, and mg/mL is milligrams of nicotine per milliliter of liquid. The two are the same measure with different units: 1% equals 10 mg/mL. So 2% is 20 mg/mL, and 5% is 50 mg/mL.
That unit conversion is the only arithmetic you need. To estimate the total nicotine a device contains, multiply the strength in mg/mL by the milliliters of liquid. As an illustration of the arithmetic only, 2 mL of 5% liquid would contain 100 mg of nicotine in total, and 2 mL of 2% liquid would contain 40 mg. How much of that you actually absorb depends on how you use the device, which is why total content and the dose per puff are very different questions.
Labels are the manufacturer’s statement. This guide does not quote lab tests of named brands, and it does not give brand-specific figures, because the primary sources used here are population-level sales studies and government rules. If you want a specific device’s number, read its package for the percent or mg/mL and the liquid volume.
How much nicotine is in a vape, by device type
Vapes come in three broad forms, and strength is distributed differently across them. The best US data comes from retail scanner sales, published in Nicotine & Tobacco Research in 2023. It covers January 2017 to March 2022 and classifies each product’s strength from under 1% up to 5% and above.
| Device type | What it is | Share of unit sales at 5% or higher |
|---|---|---|
| Disposable | Pre-filled, not refillable, thrown away when empty | 90.6% |
| Prefilled cartridge (pod) | Replaceable sealed pod clicked into a rechargeable device | 74.2% |
| All e-cigarettes together | Includes e-liquid bottles | 80.9% |
The study’s headline results do not give a separate 5%-or-higher share for e-liquid bottles. What the table does show is that disposables are the most heavily concentrated at the top strength. Refillable devices are different because the user chooses the bottle, so strength can be much lower than any pod or disposable on the shelf.
A later study of online stores, by Zhang and colleagues in the same journal in 2026, looked at the product pages of disposable vapes between 2022 and 2024. It found unique listings rising from 1,638 to 8,339, and reported that the “5% nicotine level remained dominant.” Product sizes, in both milliliters and puff counts, increased dramatically over the same period, so larger devices did not mean lower strength.
Nicotine per puff: why it varies
Many people search for nicotine per puff, or for a particular disposable brand, because they want a dose they can compare to a cigarette. No single number is reliable, for three reasons.
- Strength. A puff from 5% liquid carries more nicotine than the same puff from 2% liquid if everything else is equal.
- Volume per puff. How much liquid is vaporized depends on the device’s power and airflow and on how long and hard the person draws. Two people using the same device can take in different amounts.
- Puff counts on packaging. A puff count is the maker’s estimate of how many draws the device will provide, not a measured dose. The 2026 online-store study notes that puff counts have grown sharply, but a larger count does not tell you the mg per puff.
For that reason, treat any “X mg per puff” claim with caution unless it comes from the manufacturer’s own technical data or from laboratory testing that states how puffs were taken. This guide does not offer one.
A practical way to think about your own use is to estimate total nicotine over a day. Check how long a device lasts you, multiply by its labeled total content, and divide by the number of days. It is imperfect, but it makes a step-down plan concrete.
Vape versus cigarette: what the data can and cannot say
The FDA states that nicotine is a highly addictive chemical compound found in all tobacco products, “including cigarettes, … and most e-cigarettes.” It also says that some products, like cigarettes, are designed to deliver nicotine to the brain within seconds, which makes dependence easier and quitting harder. The FDA says e-cigarettes can generally be a lower-risk alternative for adults who smoke cigarettes, but that they are not risk-free, deliver harmful chemicals and contain nicotine.
What the sources do not provide is a verified conversion such as “one disposable equals N cigarettes.” The equivalence depends on the strength, the liquid volume, how someone vapes and how each product is smoked or vaped. Different calculations give very different answers, so the honest summary is that the comparison is contested. Our separate guides cover how many cigarettes a vape equals and how much nicotine is in one cigarette, and how addictive nicotine is ranks it against other substances.
One implication holds regardless of the exact conversion: a high-strength, large-capacity device that can be used at any moment makes it harder to notice how much nicotine you are taking in, which is why writing down your numbers is a useful first step.
US versus UK limits
The two countries regulate vape nicotine very differently.
| Rule | Great Britain (MHRA/GOV.UK) | United States |
|---|---|---|
| Maximum e-liquid strength | 20 mg/mL (2%) | No federal strength cap in the sources used here |
| Tank capacity | No more than 2 mL | Not specified in the sources used here |
| Refill container | No more than 10 mL of nicotine-containing liquid | Not specified in the sources used here |
The GOV.UK guidance on e-cigarette regulations lists the requirements as restricting tanks to a capacity of no more than 2 ml, limiting nicotine-containing refill containers to 10 ml and restricting e-liquids to a nicotine strength of no more than 20 mg/ml. The page was last updated in August 2024, so check it for any later changes, including to disposable devices.
Because 20 mg/mL is 2%, a 5% US product is two and a half times the strength allowed in Great Britain. Advice written for UK vapers, where strengths top out at 20 mg/mL, may therefore not map onto a US disposable labeled 5%.
Trends: rising nicotine strength in US sales
The 2023 retail-sales study found that from January 2017 to March 2022 the unit share of products containing 5% or more nicotine rose by 1,486.3%, and the dollar share rose by 1,345.5%. By March 2022, 80.9% of all unit sales were at that strength. The authors concluded that increases in e-cigarette nicotine strength reported for 2013 to 2018 had continued through 2022.
The share varied by flavor. Among units sold at 5% or higher, the percentage was 61.3% for tobacco flavor, 79.3% for menthol, 87.4% for mint and 96.1% for other flavors. In other words, products in flavors other than tobacco, menthol and mint were almost entirely high-strength.
Prices followed the same direction. The authors report that the price of low-nicotine-strength e-cigarettes increased while the price of high-nicotine products either decreased or did not change, so over the period the stronger products became relatively cheaper. For wider context on how many people vape and how many try to stop, see the vaping statistics for 2026.
From numbers to a step-down plan
Knowing your strength is the first step in any taper, because it tells you where you are starting. One common approach is to step down the liquid strength over several weeks while keeping the rest of your routine the same, or to cut the number of times you vape each day. Both are forms of gradual reduction. Another is to stop outright. Neither is right for everyone, and if you want medication, talk to a doctor or call a quitline.
Whichever approach you choose, write three numbers down before day one: your current strength, how long a device lasts you, and what you spend per week. Those become your baseline for measuring progress. Our step-by-step guide to quitting disposable vapes turns them into a schedule.
Methodology notes
Labeled versus measured nicotine
Everything on a package is the maker’s claim. The retail study classified products by labeled strength and did not test their contents.
Sales data is not use data
The figures describe what was sold in tracked US retail channels, not what any individual consumed. The 2023 analysis used licensed IRI retail data, and the 2026 study looked at online store listings, which are a different market.
Strength is not dose
A product’s strength and volume set an upper limit on its contents. Dose depends on use. The FDA describes nicotine as highly addictive in all of these products, so even lower strengths can sustain dependence.
Regulation changes
Rules on strength and device type can change. Treat the regulatory table as a snapshot and check the source page for updates.
Frequently Asked Questions
How much nicotine is in a vape?
It depends on strength and volume. A 5% liquid is 50 mg of nicotine per milliliter, since 1% equals 10 mg/mL. By March 2022, 80.9% of US e-cigarette unit sales were at 5% or higher (Ali et al., Nicotine & Tobacco Research, 2023).
How much nicotine is in a disposable vape?
Most US disposables are high strength. 90.6% of disposable e-cigarette unit sales in March 2022 were at 5% nicotine strength or higher, and a 2026 study of online listings found the 5% level remained dominant (Ali et al., 2023; Zhang et al., 2026).
How much nicotine is in one puff of a vape?
There is no reliable single figure. Nicotine per puff depends on the liquid strength, how much liquid is vaporized and how the person draws. Puff counts on packaging are estimates of how many draws a device provides, not measured doses.
What is the maximum nicotine strength allowed in the UK?
E-liquids in Great Britain are restricted to 20 mg/mL, tanks to 2 mL and nicotine-containing refill containers to 10 mL (MHRA guidance on GOV.UK, last updated August 2024). That is 2%, versus the 5% typical in US sales.
Is vape nicotine as addictive as cigarette nicotine?
The FDA says nicotine is highly addictive and is present in most e-cigarettes, and that e-cigarettes contain nicotine, deliver harmful chemicals and are not risk-free, though they can generally be a lower-risk alternative for adults who smoke cigarettes (FDA).
How do I convert percent nicotine to mg/mL?
Multiply the percentage by 10. A 2% liquid is 20 mg/mL and a 5% liquid is 50 mg/mL. To estimate total nicotine in a device, multiply mg/mL by the milliliters of liquid it holds.
Track the Taper, Not Just the Puffs
iQuit is free on Google Play and the App Store and lets you quit your way, cold turkey or by gradual reduction. Its real-time dashboard tracks your days free and money saved, and you can log cravings with triggers and intensity, use SOS craving support, and rely on streak shields and slip recovery if you have a hard day. It does not read or count puffs from a device.
Download iQuit Free on Google Play Download on the App Store
Primary sources: Ali et al., Nicotine & Tobacco Research, 2023, Zhang et al., Nicotine & Tobacco Research, 2026 and the FDA page on why tobacco products are addictive.
