What the calculator computes
Calculates the potential strength of the must from Brix, the sugar needed to raise the strength to the required level, and the wine strength from the density before and after fermentation.
The rule of about 17 g/L of sugar per 1 % vol. of alcohol is used. Must enrichment is limited by regulations: in many regions no more than 2–3 % vol., so the calculator warns when it is exceeded.