In the window below, choose the calculator you want to use. We have prepared several calculators that will help you choose a suitable e-liquid or concentrate and mix it correctly with a nicotine booster or PG/VG base. With the help of this tool, you can calculate how much e-liquid you get by using the desired aroma or concentrate. You can also help yourself determine the level of nicotine in the e-liquid you are preparing - regardless of whether you use Longfill or Shortfill e-liquids. Among the calculators, you can also find one that will help you determine the PG/VG ratio.