UNDERSTANDING NICOTINE LEVELS IN VAPE: WHAT YOU NEED TO KNOW BEFORE YOU PUFF!

Key Takeaways

• Vape Nicotine Levels Range from 0mg to 20mg in the UK
  UK regulations cap nicotine strength at 20mg/ml, with common options including 0mg, 10mg, and 20mg to suit different needs and preferences.
• Choosing the Right Strength Depends on Your Smoking History
  Heavier smokers may start with 18–20mg, while light or social smokers may prefer 10mg or less. 0mg options are ideal for those cutting out nicotine entirely.
• Nicotine Salts Offer a Smoother, Faster Hit
  Nic salt e-liquids absorb quickly and feel gentler on the throat—perfect for those switching from cigarettes or looking for faster nicotine satisfaction.

Vape Nicotine Levels

Vape nicotine levels refer to the concentration of nicotine in e-liquids or 'vape juice', typically measured in milligrams per millilitre (mg/ml), but sometimes represented as a percentage of the overall composition of the liquid. The term 'how many milligrams' is commonly used to indicate the amount of nicotine per millilitre of e-liquid, which is a key way vape nicotine strengths are expressed.

These levels can range from 0mg, for those who prefer nicotine-free vaping, to as high as 50mg, or 5%, in some nicotine salt-based products.

The most common vape nicotine strengths for vaping in the UK are:

• 3mg
• 6mg
• 12mg
• 18mg
• 20mg

Higher concentrations cater to heavy smokers or those seeking a stronger nicotine hit, but anything above 20mg/ml will need to be made by the user in the UK. Understanding the different vape nicotine strengths is crucial for users to choose the right option for their electronic cigarettes based on their previous smoking habits or desired nicotine intake, ensuring a satisfying and safe vaping experience.

What is Vaping?

Vaping is the act of inhaling vapour produced by an electronic device known as a vape or e-cigarette. Unlike traditional smoking, which burns tobacco to create smoke, vaping heats a liquid, often called e-juice or vape juice, that typically contains nicotine, flavourings, and other ingredients like propylene glycol and vegetable glycerine. Vegetable glycerine plays a key role in e-liquids by increasing vapour production and providing a smoother mouthfeel, while also affecting the viscosity and overall inhalation experience.

This process creates E-Cigarette aerosol, conveniently called 'vapour' that the user inhales. Vaping has become popular as an alternative to smoking, as it delivers nicotine without the harmful tar, carbon monoxide and other toxins found in cigarette smoke, which is why Public Health England's evidence review found E-Cigarettes to be 95% less harmful than smoking! (1) Many people use vaping as a way to reduce or quit smoking altogether, but a survey from Action on Smoking and Health (ASH) found that 4 in 10 UK smokers wrongly believe vaping is as harmful or worse than smoking! (2)

Vape Nicotine Levels Explained

Vape nicotine levels refer to the amount of nicotine present in vape liquids and vape refills. Nicotine contents in e-liquids are regulated and typically displayed in mg/ml or as a percentage. For example, in the UK, the maximum allowed nicotine contents for e-liquids is 20mg/ml.

The nicotine content in vape juice varies widely to suit different preferences, from nicotine-free options (0mg) to very high concentrations (up to 50mg for nicotine salts). For regular e-liquids, common strengths include 3mg, 6mg, and 12mg. Lower levels like 3mg are ideal for light smokers or those looking for minimal nicotine, while higher levels, such as 12mg or more, are suited for heavier smokers transitioning to vaping. Nicotine salts, a popular option for smoother, high-nicotine hits, can range from 20mg to 50mg. Understanding these levels helps vapers choose the right strength to match their nicotine tolerance and smoking habits.

Vape Juice mg Meaning

The "mg" on vape juice bottles refers to the strength of nicotine in the e-liquid, measured in milligrams per millilitre (mg/ml). This number indicates how much nicotine you're getting with each millilitre of vape juice. For example, a vape juice labelled as 3mg means that there are 3 milligrams of nicotine in each millilitre of liquid. Common nicotine strengths include 0mg (nicotine-free), 3mg (low strength), 6mg (medium strength), and 12mg (higher strength), allowing vapers to select a level that matches their nicotine needs. The mg measurement is crucial for understanding the intensity of nicotine intake and helps users transition from smoking to vaping by adjusting their nicotine levels accordingly.

Nicotine strengths are also shown as a nicotine percentage of the overall liquid, which is just another way to express the same measurement as mg of nicotine per millilitre. For example, a 20mg/ml nicotine liquid is the same as a 2% liquid, and a 0.6% liquid is the same as a 6mg/ml liquid. So: to convert a percentage to mg/ml, multiply by 10, and to convert mg/ml to a percentage, just divide by 10. Easy peasy!

What Strength Vape Should I Get?

Choosing the right strength for your E-Cigarette liquid depends on your previous smoking habits and how much nicotine you want to consume. For casual smokers or those who only have the odd cigarette, lower nicotine strengths or nicotine-free options are often ideal, as these replicate the experience of ultra light cigarettes without substantial nicotine intake. Social or light smokers who prefer ultra light cigarettes may find 3mg or 6mg vape strengths suitable for their occasional use.

If you typically smoke about half a pack per day or consume the average cigarette amount, 6mg or 12mg vape strengths are often a good match. Moderate smokers, defined as those who smoke approximately 10 to 20 cigarettes per day, may prefer vape strengths in the 10-12mg range to help manage cravings and transition away from traditional smoking. Heavy smokers or those transitioning from a pack-a-day habit may prefer higher nicotine levels, like 18mg or more. For a smoother experience with higher nicotine, nic salts in strengths ranging from 20mg to 50mg are an option, however you will need to mix your own liquid to achieve a strength higher than 20mg in the UK.

Your choice should also consider your personal preference for throat hit and nicotine tolerance. Matching vape strengths to your previous smoking habits is important for a comfortable and effective vaping transition.

How Much Nicotine is in Vape Liquid?

The level of nicotine in vape liquid can vary widely, offering options for different preferences and nicotine needs. Nicotine strength is often measured as a proportion of e liquid volume, which helps users assess the potency of their vape. Vape liquids typically come in strengths ranging from 0mg (nicotine-free) to as high as 50mg in some nicotine salt formulations. Standard freebase nicotine e-liquids usually offer levels like 3mg, 6mg, 12mg, and 18mg per millilitre, catering to light, moderate, and heavy smokers. Nicotine salts, which are smoother and allow for higher concentrations, can range from 20mg to 50mg. The availability of different vape nicotine levels allows vapers to control their nicotine intake and personalise their vaping experience, making it easier to either reduce their dependency or find a satisfying alternative to smoking.

What’s the Highest Vape Nicotine Strength?

The highest vape nicotine strength typically available comes in nicotine salt formulations, with concentrations reaching up to 50mg/ml, or 5 percent nicotine. Nicotine salts allow for smoother inhalation even at higher strengths, making them popular for users who need a strong nicotine hit without the harsh throat hit associated with traditional freebase nicotine. In some regions, however, such as the European Union, regulations limit the maximum nicotine strength to 20mg of nicotine per ml in e-liquids available for retail (3). This means that products sold in the UK and EU are labelled with a maximum nicotine content of 20mg of nicotine per ml, which is equivalent to 2% nicotine.

For users who want the highest strength available, nicotine salts provide a powerful option, while freebase nicotine generally maxes out around 18mg/ml. These higher levels are most suitable for heavy smokers transitioning to vaping.

What is the Lowest Amount of Nicotine in a Vape?

The lowest levels of nicotine in a vape is typically 0mg, indicating that the vape juice is nicotine-free. This option caters to individuals who enjoy vaping for the flavours and sensations without the addictive properties of nicotine. Additionally, many e-liquids offer low strengths starting at 3mg/ml, which provides a mild nicotine experience for those looking to gradually reduce their intake or for light smokers. Choosing less nicotine can help reduce dependence while still providing a satisfying vaping experience.

The availability of nicotine-free and low-nicotine options allows vapers to customise their experience and explore flavours without the influence of nicotine, making it an appealing choice for those wanting to enjoy vaping while avoiding dependence.

Is there a maximum nicotine strength in the UK?

Yes, there are limits on nicotine strength for e-liquids in the UK, regulated by the Tobacco Products Directive (TPD) (4). As of the current regulations, e-liquids sold in the UK cannot exceed a nicotine concentration of 20mg/ml. This limit applies to all vape products, including nicotine salts and freebase nicotine e-liquids. The regulation aims to promote safer vaping practices and minimise the risk of nicotine dependence, especially among new users. While some users may find that this maximum strength is lower than what is available in other markets, many vapers find that 20mg/ml provides a satisfying experience, particularly for those transitioning from traditional cigarettes.

How many puffs of a 20mg vape is equal to a cigarette?

Determining how many puffs of a 20mg vape is equal to a cigarette, or the amount of nicotine per puff, can be challenging, as various factors influence nicotine absorption and delivery. Generally, a single cigarette delivers about 1 mg of nicotine to the smoker, while a 2% vape juice contains 20 mg of nicotine per ml. Some vape juices may contain more nicotine per ml than a single cigarette, but absorption rates differ between vaping and smoking. Because vaping provides a different method of nicotine delivery compared to smoking, the absorption rate can vary, especially if using older devices. Many vapers estimate that taking around 7 to 10 puffs from a 20mg vape might provide a similar nicotine intake to smoking one cigarette, but this can depend on the device, vaping technique, and individual metabolism. It’s important for users to monitor their mg of nicotine intake and adjust accordingly to avoid potential overconsumption, especially when transitioning from smoking to vaping or when using products with more nicotine.

What is Nic Salt Vape?

Nic salt vape refers to a type of e-liquid that uses nicotine salts rather than traditional freebase nicotine. Nicotine is a chemical compound naturally found in the tobacco plant, and in nic salt vapes, it is present in its salt form, which is chemically modified to be more stable and less alkaline. Nicotine is also a highly addictive substance, making it important to understand how its delivery differs in various e-liquids. This allows for higher concentrations of nicotine to be used without the harsh throat hit typically associated with high nicotine levels because nic salts are not absorbed well in the respiratory tract. As a result, nic salt vapes provide a smoother inhale for those who prefer a smoother vaping experience. They are often found in pod systems and commercial e-liquid found in disposable vapes, allowing for quick nicotine delivery and an efficient way to satisfy cravings, making them popular among both new and experienced vapers.

There are several things to consider when choosing a nic salt e-liquid - firstly, they contain 3 to 4 times the amount of flavouring used in freebase nicotine liquids. As flavourings are responsible for some of the volatile compounds produced in the vaping process, this likely means freebase nicotine liquids are less harmful than nic salt liquids. Secondly, it is widely thought that nic salt liquids 'give more of a nicotine hit', however these pharmacological effects doesn't appear to be backed up by science. Not only are nic salt particles larger than freebase nicotine particles (which makes it harder to cross from the lungs into the blood) but they are also ionically charged, which also makes it harder for it to cross into the blood. This is supported by one study that found freebase nicotine produced higher average plasma nicotine concentration than nic salt liquids in mice, indicating freebase nicotine wins in terms of absorption of nicotine (5). Lastly, as mentioned before nic salt particles are larger than freebase nicotine particles, which makes it harder for the immune system to clear up - this could lead to increased inflammation in the lungs compared with vapour from free-base nicotine e-liquid.

Do Disposable Vapes Have Nicotine?

Yes, disposable vapes typically contain nicotine, and they are available in various strengths to cater to different preferences. Disposable vapes are just one of many vaping products available, each offering different nicotine strengths and features to suit individual needs. Most disposable E-Cigarettes come pre-filled with e-liquid that includes nicotine concentrations ranging from 20mg/ml to 50mg/ml, particularly in nicotine salt formulations. This allows users to experience a satisfying nicotine hit without needing to refill or customise their devices. The convenience and portability of disposable E-Cigarettes, combined with the availability of flavourful options, make them an attractive choice for both new and experienced vapers looking for a quick and easy way to vape. However, users should always check the packaging or product description to confirm the nicotine content before purchasing.

Can You Add Nicotine to Vape Juice?

Yes, you can add nicotine to vape juice, but it requires a few considerations and the right materials. Many vapers opt to use nicotine shots, which are concentrated nicotine liquids that can be mixed into nicotine-free e-liquids to achieve the desired strength. Freebase e liquid is commonly used for DIY mixing because it is highly compatible with nicotine shots, making it a popular choice for those who want to customise their nicotine contents. These shots are typically available in various strengths, such as 18mg/ml or 20mg/ml, and come in a bottle that can be easily mixed into larger bottles of vape juice that typically contain no nicotine; these are known as ‘shortfills‘.

Freebase e liquids are also known for their pronounced throat hit, which is preferred by some vapers seeking a stronger sensation. However, it’s essential to measure carefully to ensure you don’t exceed your intended nicotine level, as excessive nicotine can lead to unpleasant side effects. Additionally, users should be cautious when handling pure nicotine, as it is a toxic substance in concentrated forms. Overall, adding nicotine to vape juice allows vapers to customise their experience and gradually adjust their nicotine intake according to their preferences.

What vape strength should I use in a vape mod?

Choosing the right vape strength for a vape mod largely depends on your previous smoking habits and personal preferences. As vape mods are more complex vape devices that offer a degree of customisation, like different batteries, different vape coils, different strength settings and airflow adjustment, there is some flexibility when choosing your e-liquid strength. Typically, vape mods produce a lot more vapour than less powerful vape pens and disposables, favouring an inhale technique known as '‘direct lung'‘ or '‘direct to lung'’ which is when they inhale like a breath, instead of '‘mouth to lung'’ which is the inhale technique used for smoking combustible cigarettes. Lung capacity can influence how much nicotine is absorbed during vaping, making it an important factor in both direct lung and mouth-to-lung techniques. These mouth to lung vape kits can prove to be a problem for high e-liquid nicotine concentrations using freebase nicotine due to the high nicotine yield creating a very strong throat hit, potentially leading to throat irritation and coughing.

For high-strength vaping with a more powerful vape kit, using nicotine salts allows for higher concentrations without a harsh throat hit. This typically means lower freebase nicotine strengths are appropriate for sub-ohm vaping (using a coil with resistance lower than 1 Ohm), such as 3mg/ml or 6mg/ml. Freebase e-liquids also tend to produce less vapour compared to nicotine salts, which can impact the overall vaping experience and cloud production. Ultimately, experimenting with different strengths can help you find the perfect balance between satisfaction and comfort while vaping.

Best Nicotine Vape

The best nicotine vape largely depends on personal preferences, smoking habits, and desired vaping experience. For those seeking a smooth and satisfying nicotine hit, nicotine salt vapes are often recommended, as they allow for higher concentrations of nicotine without the harshness typically associated with free-base nicotine. Popular devices include pod systems like the JUUL, Vaporesso XROS, and SMOK Nord, which offer convenient portability and a variety of flavours.

There is also a wide selection of vape juices available, catering to different flavour profiles and nicotine strengths, making it easier to find the right option for your needs. For heavier smokers transitioning from traditional cigarettes, high-wattage sub-ohm devices paired with high-nicotine e-liquids can provide an intense experience. With that said, there is some evidence that low powered vapes are less harmful than high power devices as they produce less volatile compounds (6). One great example of a low powered vape that helps people to quit smoking is the SMOKO E-Cigarette cigalike vape that has a proven track record of helping smokers to quit for over 10 years! If you are unsure about which device or nicotine strength to choose, vaping experts can offer personalised advice and support to help you select the best option for your vaping journey. Ultimately, the best nicotine vape is one that aligns with your nicotine needs, device preferences, and flavour choices, ensuring a satisfying and enjoyable vaping experience.

How is vaping less harmful than smoking?

How does vaping compare to nicotine replacement products?

Electronic cigarettes and nicotine replacement therapy (NRT) products, such as nicotine patches, nicotine gum, and nicotine lozenges, are both methods used to help individuals quit smoking, but they function in different ways. Vaping delivers nicotine through an aerosol created by heating e-liquid, which can provide a more immediate and satisfying experience for those accustomed to the hand-to-mouth action of smoking. This aspect makes vaping appealing to many who seek to replicate the sensory experience of smoking while reducing exposure to harmful tar and chemicals. Both vaping and nicotine pouches are smoke free alternatives, supporting the creation of smoke-free environments and helping users quit traditional smoking. In contrast, NRT products are designed to release nicotine more gradually, helping to manage withdrawal symptoms and cravings without the inhalation of vapour.

For nicotine replacement therapy products, there is a very limited range of nicotine strengths available. This is where other nicotine products, like nicotine pouches and E-Cigarette products, can be really useful as the wide range of e-liquid nicotine strengths allows more precise control over your daily nicotine intake, making it easier to reduce your nicotine nicotine consumption over time.

What is the Best Vape to Replace Cigarettes?

The best vape to switch from smoking often depends on individual preferences and smoking habits, but many smokers find success with cigalike starter kits that offer a familiar experience. Starter kits are ideal for those looking to start vaping as an alternative to cigarettes, providing an accessible entry point for beginners.

Devices like the SMOKO E-Cigarette and SMOKO VAPE POD are popular choices due to their compact design, ease of use, and availability of high-nicotine options. These vapes utilise refills prefilled with e-liquid, making them convenient for on-the-go use. Additionally, some users prefer adjustable wattage devices like the Smok Nord series, which allow for customisation of the vaping experience, including flavour options and nicotine strength. Choosing the right nicotine strength is important to ensure a smooth transition from smoking to vaping, helping to satisfy cravings and make the switch more comfortable.

Ultimately, the best vape for replacing combustible cigarettes is one that meets your nicotine cravings, is easy to use, and offers a satisfying flavour profile, helping to make the transition away from smoking more enjoyable.

Vape Nicotine Levels: What You Need to Know Before You Puff - Conclusion

Hopefully that covers the important information when it comes to vape nicotine levels and how it impacts your choice of vape device and overall vaping experience. The most important thing is that the nicotine content in your vape satisfies your nicotine cravings when you quit smoking, however getting the right strength for your preferences is what makes it more enjoyable - and that is one powerful way to ensure you choose to vape instead of smoking. With evidence that E-Cigarettes are more effective for quitting smoking than nicotine replacement therapy products, there has never been a better time to quit!

If you are a smoker looking to quit, or a disposable E-Cigarette user looking for a more environmentally responsible product, check out SMOKO! Our cigalike E-Cigarette is beloved by many of our customers as it looks and feels very close to a traditional cigarette, perfect for smokers just beginning their vaping journey. 

For those looking for a more modern design, the SMOKO VAPE POD still utilises refills prefilled with our UK-made e-liquid, just in a more sleek and ergonomic design. Both devices use rechargeable batteries and customers can take advantage of our free Refill Recycling Program!

Make the switch with SMOKO today!

FAQ: How Many Cigarettes in a Vape? 

Q1: How many cigarettes are equivalent to one vape?
A: It depends on the size and nicotine strength of the vape. A standard 2ml disposable vape at 20mg/ml nicotine can provide around 400–600 puffs, roughly equal to 20–40 cigarettes in nicotine content.

Q2: Do all vapes have the same nicotine content?
A: No. Vapes come in different nicotine strengths (e.g., 0mg, 10mg, 20mg) and formats—disposables, pods, and refill bottles. The number of puffs and total nicotine delivered can vary widely.

Q3: Does vaping feel the same as smoking?
A: Vaping offers nicotine without combustion, which reduces harmful toxins. While the sensation differs slightly, nicotine salts (used in many vapes) provide a similar hit and satisfaction to traditional cigarettes.

Q4: Can I control my nicotine intake more with vaping?
A: Yes. Vaping gives you greater control over how much nicotine you consume, allowing you to gradually reduce your intake over time if you’re trying to quit.

Q5: Is vaping safer than smoking?
A: According to UK health authorities, vaping is at least 95% less harmful than smoking. It eliminates tobacco smoke, tar, and many of the carcinogens found in traditional cigarettes.

REFERENCES

(1) E-cigarettes around 95% less harmful than tobacco estimates landmark review

(2) Four in ten smokers wrongly believe that vaping is as or more harmful as smoking

(3) E-cigarettes: regulations for consumer products

(4) Revision of the Tobacco Products Directive

(5) Electronic Vaporization of Nicotine Salt or Freebase produces differential effects on metabolism, neuronal activity and behavior in male and female C57BL/6J mice

(6) Hidden Formaldehyde in E-Cigarette Aerosols

(7) NHS Inform: Tobacco

ABOUT THE AUTHOR 

Written by Dan Overgage

Dan Overgage – is a former smoker of 10 years until he became a client of SMOKO E-Cigarettes.  Dan started working with SMOKO 5 years ago after successfully quitting using our e-cigarettes and works across our Customer Service and heads up our content creation and research with a strong focus on all things quitting smoking.  During his tenure with SMOKO, Dan has written countless blogs and consults with countless clients every day to help them to stay smoke-free.

Last updated 31/07/2025