How much nicotine do I need to put in?

[Tootlevape]

If you are game for a quite simple bit of algebra, this is how I calculate exactly how much nic shot to add.
Let's take the case in question where you have a 50ml shortfill, 18mg/ml nic shot and you want a final nicotine content of 1.5 mg/ml. The equation, where the quantity of nic shot to be added is "q" is:
18q / (50 + q) = 1.5
18q = 1.5 x (50 +q)
18q = 75 + 1.5q
16.5q = 75
q = 75/16.5
q = 4.545 mls

 

[Toastie]

If you are game for a quite simple bit of algebra, this is how I calculate exactly how much nic shot to add.
Let's take the case in question where you have a 50ml shortfill, 18mg/ml nic shot and you want a final nicotine content of 1.5 mg/ml. The equation, where the quantity of nic shot to be added is "q" is:
18q / (50 + q) = 1.5
18q = 1.5 x (50 +q)
18q = 75 + 1.5q
16.5q = 75
q = 75/16.5
q = 4.545 mls

You lost me at algebra.

 

[thriller]

If you are game for a quite simple bit of algebra, this is how I calculate exactly how much nic shot to add.
Let's take the case in question where you have a 50ml shortfill, 18mg/ml nic shot and you want a final nicotine content of 1.5 mg/ml. The equation, where the quantity of nic shot to be added is "q" is:
18q / (50 + q) = 1.5
18q = 1.5 x (50 +q)
18q = 75 + 1.5q
16.5q = 75
q = 75/16.5
q = 4.545 mls

i'm confuuuuuuused

 

[Deleted member 58360]

i'm confuuuuuuused

Stick about roughly something close to just under half a nic shot or so in.

It'll end up somewhere nearish to approximately 1.5mg/ml more or less.

 

[speedfreek67]

If you are game for a quite simple bit of algebra, this is how I calculate exactly how much nic shot to add.
Let's take the case in question where you have a 50ml shortfill, 18mg/ml nic shot and you want a final nicotine content of 1.5 mg/ml. The equation, where the quantity of nic shot to be added is "q" is:
18q / (50 + q) = 1.5
18q = 1.5 x (50 +q)
18q = 75 + 1.5q
16.5q = 75
q = 75/16.5
q = 4.545 mls

That's brilliant!

And combined with Wolfram Alpha, it makes it really easy. Now I just have to find a way to remember it.

 

[Gillette]

The simple answer is put 5ml in, leaving you 5ml for the next shortfill. Simple.