Sourdough Starter Calculator
Calculate feeding ratios and predict peak time for your sourdough starter.
Starter Settings
Amount of mature starter to feed
Estimated Peak Time
4.0 hrs
Range: 3.2 - 4.8 hours
Flour Needed
100g
Water Needed
100g
Total After Feeding
300g
Starter Hydration
100%
Tips for Peak Starter
- • Starter should double or triple in size at peak
- • Use when domed (before it starts to fall)
- • Float test: a spoonful should float in water
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.