What is baker's percentage?

Baker's percentage expresses every ingredient as a ratio of the total flour weight. Flour is always 100%. If a recipe uses 500g flour and 350g water, the hydration is 70% (350 ÷ 500 × 100). This makes scaling and comparing recipes straightforward.

Why is flour always 100%?

Flour is the base ingredient in nearly all baking formulas. Using it as the 100% anchor means every other percentage stays constant regardless of batch size — you only need to change the flour weight to rescale the whole recipe.

Can I use this for non-bread recipes?

Yes. Baker's percentages are used for cookies, cakes, and pastry doughs too. The tool treats whatever you label as your base (flour or any dry ingredient) as 100% — the math is identical.

How do I scale up for multiple loaves?

Multiply the target flour weight by the number of loaves. For example, if one loaf uses 500g flour, enter 1500g for three loaves and all other weights scale automatically.

What does total dough weight mean?

Total dough weight is the sum of all ingredient weights. It is useful for dividing the batch into equal pieces or checking how much a recipe yields before baking.

Baker's Percentage Scaling Calculator

Name: Baker's Percentage Scaling Calculator
Availability: InStock
Author: Nham Vu

Enter your recipe ingredients as baker's percentages, set a target flour weight, and get exact gram weights for every ingredient.

Recipe Ingredients

Flour Weight (g) — Scale Anchor

Load Preset

Ingredient % (baker) Weight (g)

Flour

100%

Scaled Recipe

500g

Flour

—

Hydration

500g

Total Dough

Ingredient % Weight per 100g flour

Summary

Enter your recipe ingredients as baker's percentages, set a target flour weight, and get exact gram weights for every ingredient.

How it works

Enter your flour weight — all percentages are relative to 100% flour by weight.
Add each ingredient with its baker's percentage (flour is always 100%).
The tool calculates the gram weight for every ingredient instantly.
Change the flour weight to scale the entire recipe up or down at once.
Edit any ingredient weight directly and the percentage updates automatically.
Use the preset buttons to load common bread formulas as a starting point.

Use cases

Scale a sourdough loaf from 500g to 1kg flour without manual arithmetic.
Convert a percentage-only recipe card into exact gram weights for your kitchen scale.
Reverse-engineer the percentages from a recipe with known gram weights.
Compare hydration levels across multiple bread formulas side by side.
Teach baking students the logic behind baker's math with a live calculator.
Quickly size up a batch to fill a commercial deck oven.
Adjust a cookie or cake recipe that expresses fat and sugar as percentages.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu