Sourdough Starter Feeding Ratio Calculator
Keeping a sourdough starter healthy means feeding it consistent ratios of starter, flour, and water. Enter the ratio you follow (like 1:5:5) and the total amount you want to prepare, and this calculator will break down exactly how much of each ingredient to use.
Total Mix Weight
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Starter (g)—
Flour (g)—
Water (g)—
About this calculator
Calculate the exact amounts of starter, flour, and water needed to feed your sourdough starter at any ratio.
Frequently Asked Questions
What's a common sourdough feeding ratio?
1:1:1 is common for frequent feeders, while 1:5:5 or 1:10:10 is used for a slower rise and less frequent feeding.
Can I use this for discard recipes too?
This calculator is designed for feeding ratios, but you can use the same math to scale discard-based recipes.
Does the ratio affect rise time?
Yes, higher ratios of flour and water to starter slow down fermentation, giving a longer window before the starter peaks.