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Baker's Percentage Calculator

API reference

Convert a bread recipe's ingredient weights into baker's percentages, see total hydration, and scale the recipe to a target dough weight — one ingredient per line.

Input

Output

Baker's Percentages
IngredientWeight (g)Baker's %Scaled (g)
No data yet
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More ways to use this tool

REST API

curl -X POST https://api.iotools.cloud/v1/tool/baker-s-percentage-calculator \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "ingredients": "Bread flour 500\nWater 350\nSalt 10\nYeast 3",
    "flourKeyword": "flour",
    "targetWeight": ""
  }'

Swap in your own key from your account. The tool's fields are the body — no wrapper.

Ask an AI agent

Use the IOTools `baker-s-percentage-calculator` tool (Baker's Percentage Calculator) on this input:

YOUR_INPUT_HERE

Paste this at any agent connected to the IOTools MCP server, then add your input.

Embed widget

<iframe
  src="https://iotools.cloud/embed/baker-s-percentage-calculator/"
  width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
  title="Baker's Percentage Calculator — iotools.cloud"
  sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
  allow="clipboard-write"
  style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>

Drop this into your own page — free, no key required, just a link back.

Cost per API/MCP callFrom 5 credits
Need more credits?View pricing

Also available with

Guides

Bread recipes as ratios

Bakers write recipes as percentages of the flour weight, so a formula works for one loaf or a hundred. Flour is always 100%; every other ingredient is its weight divided by the total flour weight.

How this tool works

  1. Enter one ingredient per line with its weight in grams, e.g. Bread flour 500.
  2. Any line whose name contains the flour keyword counts as flour — several flours are added together.
  3. The table lists each ingredient's baker's percentage, the total dough percentage, and total hydration (water, milk or liquid lines divided by flour).
  4. Fill in Scale to Dough Weight to get every ingredient rescaled so the dough hits your target weight.

The math

  • Baker's % = ingredient weight ÷ total flour weight × 100
  • Hydration = liquid weight ÷ total flour weight × 100
  • Scaled weight = ingredient weight × (target weight ÷ current total)

Common uses

  • Reading a formula from a bread book and sizing it for your oven
  • Tuning sourdough hydration from 65% to 75%
  • Scaling a recipe from 1 loaf to a batch without recalculating by hand

Privacy

This tool runs entirely in your browser. Your recipes are never uploaded to a server.

baker's percentagebakers mathbread formuladough hydrationrecipe scalingsourdough percentageflour weight ratio

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