All The Flavors allows to you calculate this. For percentage using your example, 10+4+2= 16%.

You can easily do this on alltheflavors.com and e-liquid-recipes.com. On ATF, find or create a recipe, and click the mix button, and check the "Mix as flavor base" checkbox. On ELR, find or create a recipe, click the wrench icon, and then click "Make one-shot / flavor concentrate".

The math is pretty easy if you want to do it manually too. You have a total of 16% flavoring, so just divide each of the percentages by 16 to get the percentage for your concentrate. Multiply the one-shot percentage by the number of ML of one-shot you want to mix, and you have the number of ML for each flavor.

||Mix percentage|One-shot percentage|Amount for 60 ML| |:-|:-|:-|:-| |Flavor1|10%|10 / 16 = 62.5%|0.625 * 60 = 37.5ml| |Flavor2|4%|4 / 16 = 25%|0.25 * 60 = 15ml| |Flavor3|2%|2 / 16 = 12.5%|0.125 * 60 = 7.5ml|

If you are not using specific weights for your flavors like most people, that number is also the weight.

Put your recipe in http://e-liquid-recipes.com. once you're on the page for your recipe, click the blue settings icon. The very first drop down result will be "create one-shot/concentration". Once you do that it will give you a calculator.

Here's an example of that. Picture the desired mixing percentage don't touch. That is the same as total flavor percentage for each recipe.

To add to the above discussion:

When I mix a new flavor I only make a single small bottle. I’ve noticed that some flavors start out great but don’t last. By the time I finish 30 ml I know if I’d make it again.

For the short list of repeats I frequently mix a larger flavor base bottle. Usually enough to make 150-300 ml of finished product. I just use glass Boston round bottles with a flat cap. Depending on how much percentage the mix calls for, 30 ml of flavor base can make a lot or a little.

I also date the flavor base bottle for easy record keeping.

I use this juice calculator which is awesome. It lets you create flavor bases and do a million other things with your recipes.

I didn't see anyone write the simple answer.

On ATF, go to the recipe you want to make and click mix. There is a checkbox for Mix as Flavor Base. Enter the MLs you want to make as a flavor base. On the bottom it'll tell you use 10% for example.

Create a new recipe and enter whatever as a flavor at 10%(This will be your flavor base%). All you'd need to do is put your nic base, pg,vg, and the % of your flavor base and your juice is made. It took me a while to start doing this as well but saves you an infinite amount of time.

compromises. The simplest thing to do is assume that all flavorings weigh the same. This is a lie. Or do accurate volumetric measurements, or like... have the specific gravity of everything (a pain in the dick)

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what i usually did was make a small batch at the (falsely assumed weight) and then if i upscaled (say from 30ml of flavor base to a gallon to 2.5 gallons) the difference in weights out spread, and i would have to make minor corrections - those bumps only occured when production batch changed?

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but essentially my personal calculator lets you.. break out the flavorings seperately by assumed weight, and you can 'change' the batch size of the flavoring - the final calculator only spits out 'percentage of flavor base' 'percentage of vg without nic' 'percetange of pg that isn't flavor' and 'vg with nic' - i wanted a very flexible system.

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