70pg/30vg into 50/50

[Subtanker]

Got 20ml of 70pg/30vg in 6mg.
Want to make into 50/50 i have the vg liquid just need to know how much to add please? I know this will lower nicotine but thats fine as im used to 3mg.
Cheers
Im no good at the calculator...

 

[Hans Wermhat]

Math sucks! Lol! What size bottle is it?

 

[Subtanker]

Ive got 20ml of 70vg/30pg
Want to go to 50/50 if poss i only have a bottle of vg? How much vg do i add?

I have an empty 30ml bottle to put in to mix.

 

[coolerat]

Edit to hide the fact that I have lost my mind

 

[Hans Wermhat]

9ml... I think? If your 20 ml bottle is 30% VG, thats 6 ml. A 50/50 mix in a 30 ml bottle would have 15 ml... so 9 ml?

 

[Boden]

8 mL of whatever % is smaller

 

[Hans Wermhat]

No, that can't be right...

 

[Hans Wermhat]

Yes it is. 9 ml.

 

[Boden]

20x0.7= 14mL PG
20x0.3= 6mL VG

Add 8 mL of VG to make it 14mL PG and 14mL of VG.

Edit: in the OPs second post the ratio switched

 

[Subtanker]

Were happy at 8ml of vg into the 20ml of 70/pg 30/vg to make 50/50?
Cheers all

 

[Maurice Pudlo]

20ml x 70% PG is 14ml of PG

20ml x 30% VG is 6ml of VG

14 - 6 = 8

Add 8ml of VG to get 28ml of 50/50 juice.

The nicotine level will be
4.28571429 mg/ml

You figure that by;
6mg/ml x 20ml = 120mg of nicotine
120mg ÷ 28ml = 4.28571429 mg/ml

Hope the math helps.
Maurice

 

[Papillon61]

Just use this calculator and cut the math and the guesswork :eJuice Me Up - Best eJuice Calculator

 

[Subtanker]

How long to leave before skaking up and mixing before i vape?

 

[drysprocket]

You're in luck, I just went through this last night and the usual calculators make my head spin...but I found the one that is dirt simple for this, promise:

DIY E-Liquid Combining Calculator

Just try a couple different ML combos and it should be easy to narrow down.