DIY e-liquid calculator

How do you use our DIY e-liquid calculator?

Our calculator makes it easy to work out how much base, nicotine booster and flavour concentrate you need to make your e-liquid. It can also calculate how much booster to add to an e-liquid you have already made when you want to increase its nicotine strength.

The calculations use nicotine-free base (0 mg/ml) and 10 ml nicotine boosters at 20 mg/ml.

Make a new e-liquid

To make your e-liquid, simply enter three details:

• the final quantity you want to make;
• your desired nicotine strength in mg/ml;
• the percentage of flavour concentrate recommended for your concentrate.

The calculator automatically works out the exact volumes of base, booster and flavour concentrate to use.

For example, to make 60 ml of e-liquid at 6 mg/ml with 15 % flavour concentrate, you will need:

• 33 ml of nicotine-free base;
• 18 ml of booster at 20 mg/ml;
• 9 ml of flavour concentrate.

This gives you exactly 60 ml of e-liquid at 6 mg/ml.

How many boosters do you need?

Our calculations use 10 ml boosters at 20 mg/ml.

The calculator shows both the exact volume of booster needed and the number of 10 ml bottles to have ready.

For example, if your recipe calls for 18 ml of booster, you will need 2 bottles of 10 ml, but the exact recipe uses only 18 ml.

For the most accurate strength, we recommend measuring the stated volumes instead of routinely rounding up to a whole bottle.

Change the nicotine strength of an existing e-liquid

Already made some e-liquid and want to increase its nicotine strength? The calculator’s second mode works this out for you.

Enter:

• the current volume of your e-liquid;
• its current nicotine strength;
• the nicotine strength you want to reach.

The calculator then offers two options.

Add booster

Keep all your e-liquid and add the required amount of booster.

The total volume will increase.

For example, to turn 1 000 ml of e-liquid at 0 mg/ml into e-liquid at 6 mg/ml, add approximately 428,57 ml of booster at 20 mg/ml. The final volume will be approximately 1 428,57 ml.

Keep the same volume

To keep exactly the same final volume, remove some of the e-liquid and replace it with booster.

To obtain 1 000 ml at 6 mg/ml from 1 000 ml at 0 mg/ml, remove 300 ml of e-liquid, then add 300 ml of booster at 20 mg/ml.

This keeps the final volume at 1 000 ml.

Pay attention to flavour concentration

Adding booster to an e-liquid you have already made increases its volume and may dilute its flavour.

Likewise, removing some e-liquid and replacing it with booster may change the proportion of flavour concentrate in the mixture.

The calculator works out the required amount of nicotine, but does not recalculate the flavour concentration of an e-liquid already made.

Measure your DIY mixture carefully

To get as close as possible to the calculated result, use equipment that lets you measure volumes accurately: a graduated bottle, syringe, measuring cylinder or suitable beaker.

The calculator may show decimal amounts. You do not need to use a whole booster just because you have opened a bottle: measure the amount shown and store the remainder appropriately.

After adding your flavour concentrate, also follow the steeping time recommended by its manufacturer, as this depends on the flavour used.