E-Liquid Nicotine Strengths Guide
Choosing an e-liquid nicotine strength can be confusing, particularly if you're switching from cigarettes to vaping. Vape nicotine levels are labelled in milligrams per millilitre (mg/ml), percentages, or sometimes both. What does 6mg mean? Is 20mg the same as 2%? And which strength is appropriate for your device?
This guide explains the nicotine strengths available in the UK, from nicotine-free 0mg e-liquid to 20mg/ml, the maximum concentration permitted in standard UK consumer nicotine-containing e-liquids. We'll also explain the difference between freebase nicotine and nicotine salts, and why the right strength depends on more than how many cigarettes you used to smoke.
Quick Guide to Vape Nicotine Strengths
| Nicotine strength | Percentage | Commonly found in |
|---|---|---|
| 0mg/ml | 0% | Nicotine-free e-liquid |
| 3mg/ml | 0.3% | Freebase e-liquid, including higher-VG liquids |
| 5mg/ml | 0.5% | Nicotine salts |
| 6mg/ml | 0.6% | Freebase e-liquid |
| 10mg/ml | 1% | Nicotine salts |
| 11mg/ml or 12mg/ml | 1.1% or 1.2% | Traditional freebase ranges |
| 18mg/ml | 1.8% | Higher-strength freebase e-liquid |
| 20mg/ml | 2% | Nicotine salts and prefilled pods |
These are common examples rather than fixed rules: availability depends on the brand and formulation. 10mg/ml equals 1% nicotine, and 20mg/ml equals 2%. The strength printed on the bottle describes nicotine concentration, not the amount your body absorbs from each puff.
The Basics: What Is Nicotine?
Nicotine is an addictive stimulant naturally found in tobacco. It is present in cigarettes and in many vape e-liquids, although nicotine-free options are also available. Nicotine acts on the brain's reward pathways and can cause cravings and withdrawal symptoms when regular use stops.
Is Nicotine Harmful for You?
Nicotine is not risk-free and is highly addictive. However, much of the serious harm caused by cigarette smoking comes from burning tobacco and inhaling the resulting smoke, including tar and carbon monoxide. According to the NHS guidance on using e-cigarettes to stop smoking, vaping exposes people to fewer toxins and at lower levels than smoking, although vaping is not harmless. People who do not smoke should not start vaping.
For adults using vaping to stop smoking, choosing an appropriate nicotine strength may help manage cravings. There is no need to aim for the lowest strength immediately if doing so increases the risk of returning to cigarettes.
Nicotine Strengths Explained
Vape nicotine levels typically range from 0mg (no nicotine) to 20mg/ml (2%) in UK consumer products. Lower concentrations contain less nicotine per millilitre, but the amount of nicotine delivered in practice also depends on your device, how much e-liquid you use and how you vape.
Lower-strength e-liquids are often used in devices that produce larger amounts of vapour. Higher-strength liquids are generally more suitable for lower-powered mouth-to-lung (MTL) devices and pod kits. This is why comparing nicotine strength without considering the vape kit can be misleading.
Nicotine Strength in mg/ml vs Nicotine Percentage
Mg/ml means milligrams of nicotine per millilitre of e-liquid. A 6mg/ml liquid contains 6mg of nicotine in each millilitre; a 10ml bottle contains 60mg in total. A 20mg/ml liquid contains 20mg in each millilitre, or 200mg in a 10ml bottle.
To convert mg/ml to the percentage convention used on vape packaging, divide the mg/ml number by 10:
- 3mg/ml = 0.3%
- 5mg/ml = 0.5%
- 6mg/ml = 0.6%
- 10mg/ml = 1%
- 12mg/ml = 1.2%
- 18mg/ml = 1.8%
- 20mg/ml = 2%
Is 20mg the same as 2%? Yes. Both describe the same nicotine concentration. The total nicotine in a bottle is not the same as the nicotine absorbed by the person vaping it.
The Range of Nicotine Strengths
0mg Nicotine (0%): The Lowest Vape Nicotine Level
The lowest nicotine strength is 0mg. Nicotine-free e-liquid contains no nicotine. It may appeal to existing vapers who have gradually reduced their nicotine intake, but nicotine-free vaping is not risk-free. Explore 0mg e-liquids.
3mg Nicotine (0.3%): A Low Strength
3mg is one of the lowest commonly sold nicotine-containing strengths. It is especially common in higher-VG e-liquids used with devices that produce more vapour. It can also be an option for existing vapers stepping down from a higher strength. Browse 3mg e-liquid.
5mg Nicotine (0.5%): A Lower-Strength Nic Salt Option
5mg is a relatively low nicotine concentration, often found in nicotine salt ranges. It provides an option for people who prefer nic salts but do not want a 10mg or 20mg liquid. See 5mg e-liquids.
6mg Nicotine (0.6%): Is 6mg a Lot?
6mg/ml is generally considered a lower nicotine concentration compared with 12mg, 18mg or 20mg. However, 6mg can still deliver a substantial amount of nicotine if you use a high-powered device or consume a lot of e-liquid. It is commonly available in freebase formulations, including some 50/50 e-liquids and higher-VG liquids. Explore 6mg e-liquid.
10mg Nicotine (1%): A Common Nic Salt Strength
10mg/ml is a mid-range concentration commonly found in nic salts. These liquids often provide a smoother throat sensation than freebase nicotine at the same concentration and are commonly used in lower-powered refillable pod kits. Browse 10mg e-liquid.
11mg and 12mg Nicotine (1.1% and 1.2%): Is 12mg Strong?
12mg is stronger than 3mg, 6mg and 10mg e-liquid, but below the UK's 20mg/ml maximum. It is often found in traditional freebase ranges, where it can produce a more noticeable throat hit. Whether it feels strong depends on the device, formulation and your nicotine tolerance. Some traditional ranges also offer 11mg. See 12mg e-liquid.
18mg Nicotine (1.8%): A Higher Strength
18mg/ml is a higher nicotine concentration commonly associated with freebase e-liquids. Because freebase nicotine can feel harsher at higher strengths, these liquids are generally better suited to suitable lower-powered MTL devices rather than high-vapour sub-ohm kits. Explore 18mg e-liquid.
20mg Nicotine (2%): The Highest UK Vape Nicotine Strength
20mg/ml (2%) is the maximum nicotine concentration permitted in standard nicotine-containing consumer e-liquids sold in the UK. It is a high strength, frequently found in nic salts and prefilled vape pods, and is generally intended for suitable lower-powered devices. Browse 20mg e-liquid.
Products sold in other countries may be subject to different nicotine limits. If you're searching for the highest nicotine vape, check which country's rules apply rather than assuming the UK limit is universal.
What Is the Lowest or Highest Nicotine Vape?
The lowest nicotine vape is 0mg, which contains no nicotine. Among nicotine-containing e-liquids, 3mg and 5mg are common lower-strength choices. The highest permitted nicotine concentration in standard UK consumer e-liquid is 20mg/ml (2%). These figures describe concentration, not a guaranteed amount of nicotine delivered per puff.
How Do I Know Which Nicotine Strength Is Right for Me?
There is no reliable formula that converts a number of cigarettes per day into an exact e-liquid strength. Nicotine delivery varies with device power, liquid formulation, puffing behaviour and the amount of e-liquid consumed.
- Consider your device: higher-strength e-liquids are generally used in lower-powered MTL devices; lower strengths are more common in high-vapour devices.
- Pay attention to cravings: if you've switched from smoking but still experience persistent cravings, your strength or vaping setup may not be meeting your needs.
- Watch for unpleasant symptoms: nausea, dizziness and headaches can be signs of excessive nicotine exposure. Stop vaping if these occur and seek medical advice if symptoms persist.
- Consider formulation: nicotine salts often feel smoother than freebase nicotine at the same concentration, so throat hit alone is not a reliable measure of nicotine strength.
If you're using vaping to stop smoking, a pharmacist or NHS stop-smoking service can help you choose an appropriate approach. If you already vape and wish to reduce nicotine, you can consider stepping down gradually without increasing the risk of returning to cigarettes.
Are There Different Types of Vapes?
Refillable Vape Kits
Refillable vape kits let you choose your own e-liquid and nicotine strength. Many simple pod kits are designed for MTL vaping and work well with appropriate 50/50 liquids and nic salts. Device specifications matter: not every liquid is suitable for every coil or pod. For more background, see our vaping for beginners guide.
Reusable Prefilled Vapes
Reusable prefilled pod systems use a rechargeable device and replaceable prefilled pods. The nicotine strength is determined by the pod you buy, rather than by an e-liquid you add yourself. Many prefilled pod ranges offer 10mg or 20mg nicotine salts, although availability varies. Unlike single-use disposable vapes, the device is retained when a pod is replaced.
Nicotine-Free Vapes
Nicotine-free e-liquids are labelled 0mg or 0%. They contain no nicotine, but vaping without nicotine can still expose users to substances that irritate the airways. People who do not smoke should not start vaping.
Freebase Nicotine vs Nicotine Salts
Nicotine strength is only one factor in choosing an e-liquid. The form of nicotine also affects how the liquid feels when inhaled.
Freebase Nicotine
Freebase nicotine is the traditional form used in many e-liquids. It typically produces a more pronounced throat hit as nicotine strength increases. Freebase liquids are available in different PG/VG ratios, including 50/50 e-liquid, higher-VG liquids and the existing Tablites Premium Range, which uses a high-PG formulation.
Nicotine Salts
Nicotine salts are formulated to alter the nicotine's pH, generally creating a smoother throat sensation at comparable strengths. They are widely available in 5mg, 10mg and 20mg options and are commonly paired with lower-powered pod kits. Explore nic salt e-liquids, including ElfLiq and Elux Legend.
Frequently Asked Questions About Vape Nicotine Levels
Is 2% Vape a Lot of Nicotine?
Yes. A 2% vape contains 20mg/ml nicotine, the highest concentration permitted in standard UK consumer nicotine-containing e-liquids. It is considered a high concentration, although the amount of nicotine a person absorbs also depends on the device and how they vape.
Is 20mg Nicotine the Same as 2%?
Yes. 20mg/ml equals 2%. A 10ml bottle of 20mg/ml liquid contains 200mg of nicotine in total; this is not the amount absorbed during use.
Is 10mg Nicotine the Same as 1%?
Yes. 10mg/ml equals 1%. Similarly, 5mg/ml equals 0.5%, 6mg/ml equals 0.6%, and 18mg/ml equals 1.8%.
Is 6mg Nicotine Strong?
6mg/ml is lower than 10mg, 12mg, 18mg and 20mg concentrations, but its effect depends on the device and how much liquid you use. A high-vapour device can consume more e-liquid than a small MTL pod kit.
Is 12mg Nicotine a Lot?
12mg/ml is a moderately high concentration compared with 3mg or 6mg liquids. It is often found in freebase e-liquid and may feel stronger on the throat than an equivalent nic salt. Whether it is suitable depends on the individual and their device.
How Much Nicotine Is in a Cigarette Compared with a Vape?
There is no dependable direct conversion between cigarette counts and e-liquid strength. Cigarettes and vapes deliver nicotine differently, and delivery varies with how each product is used. A bottle's total nicotine content should not be interpreted as the amount absorbed by the user.
Can I Gradually Reduce My Vape Nicotine Strength?
Yes. E-liquids are available in a range of strengths, allowing existing vapers to step down gradually if they wish. If you're using vaping to stop smoking, reducing nicotine too quickly may make cravings harder to manage; seek advice from a pharmacist or stop-smoking adviser if needed.
Does UK Vaping Products Duty Depend on Nicotine Strength?
No. UK Vaping Products Duty is based on the volume of vaping liquid within scope, not its nicotine concentration. This includes qualifying 0mg nicotine-free e-liquid as well as nicotine-containing liquids.
Find an E-Liquid and Vape Kit That Suit You
Understanding vape nicotine levels is a useful first step, but the right choice also depends on your device and how you use it. Browse our e-liquids and vape kits, explore more vaping guides, or contact Tablites if you need help understanding the options.