An average tobacco cigarette yields about 1 mg of absorbed nicotine. 

There are too many variables (what you smoke today, how much you smoke, how long, how frequently, how you drag, etc.) to come down to an exact number. Instead try to listen to your body.

If for example the 8 mg liquid does not stop your cravings, then increase it to 12 mg and see if that works for you. It's a lot of trial and error in the beginning but you will find the right electronic cigarette nicotine level.

we normally offer 24mg,18mg,16mg,12mg,11mg,8mg,6mg,0mg nicotine level for your choice.