Nicotine Strength Explained: Milligrams, Percentages and Salts
What mg/ml actually means, how it relates to percentages, and why salts behave differently.

Nicotine strength on a bottle is usually given in milligrams per millilitre (mg/ml). Sometimes it’s shown as a percentage instead.
Converting the numbers
The maths is simple: 1% equals 10 mg/ml. So 2% is 20 mg/ml and 0.3% is 3 mg/ml.
Freebase vs nicotine salts
Freebase nicotine is the traditional form. Nicotine salts are formulated to feel smoother at higher strengths, which is why they’re common in pod systems. Neither is “better” — they suit different devices.
Device matters
Higher strengths are typically used in low-power MTL devices; lower strengths in higher-power DTL setups. Mixing those up can make for an unpleasant experience.
Nicotine is addictive. This article explains labelling only — it isn’t health advice. Follow the laws where you live, and if you don’t vape, don’t start.






