Fermentation Schedule Calculator

Estimate fermentation phases, diacetyl rest, and total time to packaging

Starting gravity before pitching yeast. Higher OG takes longer.
SG
Expected FG after fermentation.
SG
Ale ferments warm and fast. Lager ferments cold and slow.
Million cells/mL/deg Plato. Standard ale: 0.75, lager: 1.5.
M/mL/P
Temperature where the fermenter is stored.
°F

Results

Expected Active Fermentation:-days
Active Phase:-
Diacetyl Rest:-
Total Time to Package:-days
Expected Attenuation:-%
Reference: White and Zainasheff, Yeast: The Practical Guide to Beer Fermentation. Typical ale: 5-10 days; lager: 10-21 days + lagering.