Free tool
Sourdough Baker's Percentage & Recipe Calculator
Set how many loaves you want and your hydration, salt and levain percentages. The calculator gives exact weights for every ingredient and accounts for the flour and water already in your levain.
Guides on this topic
GuideSourdough Baking Schedule for a 9-to-5 Job (3 Weekday Timelines)
Three sourdough schedules that fit around a full-time job, using the fridge as a pause button, plus how to adjust for temperature.
GuideSourdough Starter Feeding Ratios Explained (1:1:1 vs 1:5:5)
What sourdough starter feeding ratios mean, how they change peak timing, which to use for your schedule, and real gram examples.