How do you figure amount of Nic in carto??

[hubseven]

My carto holds 4 drops of juice, if I am using 24mg of Nicotine in 5ml , how much Nicotine is in 1 carto.

 

[DonDaBoomVape]

If 1 ml = 20 drops, 4 drops = 1/5 ml. "24mg" means 24mg nicotine per 1 ml e-liquid (regardless of the size of the bottle). Therefore: 24/5 = (wait, let me get my calculator) = 4.8mg.

BTW, what kind of lousy cartomizer holds only 4 drops of e-liquid?