Nicotine Strengths Explained
Nicotine strength can be confusing because the number on the bottle is only part of the story. This page explains what 5mg, 10mg and 20mg mean, how nic salts differ from freebase, and how to choose a level that suits your routine.
What does “mg” mean on vape liquid?
In the UK, nicotine strength on e-liquid is usually shown as mg/ml. For example, 10mg means 10 milligrams of nicotine per millilitre of liquid. Higher numbers generally mean stronger nicotine per puff, but the device and the type of liquid also matter.
The quickest rule of thumb
If you used disposable vapes, many people find 10mg or 20mg nic salts the easiest transition, especially with a pod kit. If you are unsure, start lower and adjust.
Related: Beginner starter kits
Nic salts vs freebase nicotine
Two liquids can have the same mg strength but feel different:
- Nic salts are commonly used in pod kits and are often smoother at higher strengths.
- Freebase nicotine can feel harsher at higher strengths for some people, especially in small pod devices.
If you want the closest match to disposables, nic salts are often the simplest starting point.
Strength guide: 5mg, 10mg and 20mg
| Strength | Often chosen by | What it can feel like | Good to know |
|---|---|---|---|
| 5mg | Light users, lower nicotine preference, people stepping down | Milder nicotine feel | Can be a good “step down” target once you are stable on 10mg or 20mg. |
| 10mg | Many disposable users, moderate nicotine preference | Noticeable nicotine feel without being extreme | Popular balance point for pod kits, especially with nic salts. |
| 20mg | Heavier nicotine preference, frequent disposable users | Stronger nicotine feel and faster satisfaction | UK legal max for e-liquid. Often used with pod kits and nic salts. |
Device power matters. The same liquid can feel stronger or weaker depending on airflow, coil type, and how you vape.
How to choose your nicotine strength
- Start with what you already use: if you used disposables regularly, consider 10mg or 20mg nic salts.
- If you feel lightheaded or queasy: drop the strength or take fewer puffs.
- If you keep chain vaping: you may need a stronger nicotine level or a more suitable device.
- When stable: step down gradually rather than jumping straight to very low strength.
Common mistake
Buying a low strength and then vaping far more to compensate. This can make the experience feel worse, not better.
Need a simple setup? Shop beginner starter kits
Nicotine strengths FAQ
What nicotine strength is closest to disposable vapes?
Many disposable users find 10mg or 20mg nic salts with a refillable pod kit the easiest transition. If you are unsure, start lower and adjust.
Is 20mg nicotine legal in the UK?
Yes. 20mg is the maximum legal nicotine strength for e-liquid in the UK.
Why does the same strength feel different in another device?
Power, airflow and coil type change how much vapour you inhale per puff. More vapour usually means a stronger nicotine hit even if the bottle strength is the same.
Should I choose nic salts or freebase nicotine?
Many beginners and disposable switchers prefer nic salts because they are commonly smoother at higher strengths, especially in pod kits.
How do I step down nicotine strength?
Step down gradually. For example, move from 20mg to 10mg, then to 5mg once you feel stable. The best pace is the one you can maintain comfortably.
Adult use only. You must be 18 or over to purchase vaping or nicotine products.