Mg/ml doesn't have to be confusing. It's just a concentration label. Learn what it means, pick a starting strength based on your smoking history, and use the Windbar Nicotine Strength Calculator to double-check your math. That's all you need to make your first order confidently.

For more detail on how nicotine strengths affect your buying decisions, see our Nicotine Strength Buying Guide for Distributors or the Bottle Math Made Simple guide. If you're comparing devices and want to understand battery life, read our mAh Explained guide.