(Out of Coffee) Ratio Calucator

Have you ever gone to make your morning coffee to then realize you don't have enough beans for your typical brew? How many grams do you have? Great, but how many cups of water should you pour in? It's 6am - too early for math.

In this case, enter the amount of grams you do have, and in the ratio boxes, enter what you usually use. Hit calculate, and we'll tell you how much water to use. This app is intended to fill in the missing link, whatever it is.

Fill out 3 of 4 boxes to calculate your missing starting value, or fill out the top two to find your ratio percentage.

A:B = C:D