[Raymond S.]

Don't put that in your tank or even mix it without asking someone who knows how to use that calculator first. You may be putting up to double what you need in there.
A person familiar/w it can also explain it better than I but since I use the section which gives the measurements in teaspoons(or parts thereof) I will try to explain it as best I can. But check/w others to get a better explanation.
The list on the right(of the calculator) has "the results" for individual nutrients.
You have a "target PPM". But you need to add the results for ALL of the nutrients
to see what the total is and compare that to your target figure.
I'll give you an example, but using the teaspoons, which the section from "and you are dosing for"...on this section, the choice that is "Low light EI/Weekly" gives me
1/4 teaspoon of KNO3...but I also dose K2SO4...so I need to cut my doses of the KNO3
and cut the doses of K2SO4 to half each to get the total of 1/4 tsp. So I use 1/8 tsp
of each. That gives me a 1/4 tsp dose of the K.
I know this may not yet be clear, but I suggest you just wait till others answer you.