Calculator for vaping - link
How much nicotine shots do you need for given bottle volume.
Formula:
nicotine_amount [mg] = bottle_volume [ml] * nicotine_strength [mg/ml]
OR
nicotine_strength [mg/ml] = nicotine_amount [mg] / bottle_volume [ml]
nicotine_amount - how much mg of nicotine do we need to add to given bottle to achieve certain amount of nicotine per ml in that bottle
bottle_volume - bottle volume in ml (like 100ml)
nicotine_strength - how much mg of nicotine per ml of liquid do we want in that bottle
E.g. for 100ml bottle, to achieve 6mg nicotine per ml, you need 3 shots that have 20mg nicotine per ml.