SOURDOUGH CALCULATOR & JOURNAL
BreadMath
Sourdough Calculator & Journal
BreadMath does the baker's math for your dough, keeps your starter on a feeding schedule, and holds a photo record of every loaf you have baked. It runs on your phone with no account to make.
Free to use. $4.99 one-time unlock.
Android · iOS.
Type in your flours, water, salt and starter and every percentage updates as you go. Add as many flour types as the recipe needs, bread flour, whole wheat, rye, spelt, and the totals stay right. Save the result as a recipe when you like the numbers.
Enter flour, water, and how much starter you are using along with the starter's own hydration. BreadMath splits the starter into its flour and its water first, so a levain-heavy dough reads honestly. Eight styles are listed with their usual ranges, bagels at 55% up to focaccia at 85%.
Pick your ratio, 1:1:1, 1:2:2, 1:3:3 or 1:5:5, and the build calculator gives you the starter, flour and water for any target weight. Tap I just fed it to log the feeding. Reminders run every 4, 6, 8, 12 or 24 hours, and pause while the jar is in the fridge.
Starter feeding calculatorSeven steps come set up: autolyse, mix and knead, bulk ferment, pre-shape, final shape, cold proof, bake — eighteen hours end to end. Time them forward from now, or flip to Finish at and read each step as how long before the bake it falls. Every step gets a clock time and its own timer.
Bake timeline plannerSixteen recipes are built in, including plain sourdough, rye, baguette, ciabatta, brioche, bagels, pretzels, pizza and naan. Each shows its ingredient table with baker's percentages and step-by-step instructions. The scaler resizes any of them by dough weight, by multiplier, or by number of loaves.
Log a bake with up to four photos, a star rating, tags, notes, and a link to the recipe you used. Sort by newest, oldest or best rated. It is the part you thank yourself for six months later, when a loaf comes out right and you want to know what you did.
PRICING
$4.99one-time
The calculators are free and stay free. One payment unlocks the journal, the timeline, the scaler, all 16 recipes and the feeding reminders, and removes the ads.
The baker's percentage calculator, hydration calculator, starter manager and three recipes are free and show ads. A one-time $4.99 unlock adds the journal, timeline, scaler and all 16 recipes, and removes the ads.
Yes. Every calculation, recipe, bake and feeding is stored on your phone. A connection is only used to serve ads in the free version.
No. There is no sign-up and no email address to hand over. Open the app and start typing numbers.
Yes. Enter the starter weight and its hydration, and BreadMath splits it into flour and water before working out the dough's real hydration.
Yes. The timeline has two modes. Start now times each step forward from the moment you open it. Finish at reverses the arithmetic, so every step reads as how long before the bake it falls.
No. $4.99 once. Nothing renews, and future updates are included.
The calculators are free. Open it, weigh your flour, and see what the dough is actually at.