What it helps you decide
Inspect base-100 ratios and scale to a target batch.
Free formulation calculator
See the formula ratio—and scale it to any batch.
Compare every ingredient to the total batch and to one selected base ingredient—useful for baker's percentages, spice blends, soaps, cosmetics, and repeatable maker formulas.
Start with the example
The values already filled in are a working example—not a recommendation.
- 1Choose the closest starting point.
- 2Replace the example with your real details.
- 3Read the live result and its important limits.
Formula inputs
Enter one common unit
All quantities must use the same measurement unit. Select the base ingredient used for the relative percentage column.
BaseQuantityIngredient
Two useful views
Total percentage and base percentage answer different questions.
Total-formula percentage shows how much each ingredient contributes to the entire mix. Base percentage compares each ingredient to the selected base at 100%—the familiar baker's-percentage method that also works well for many other formulation workflows.
About this free formulation & batching tool
How to use the Formula & Baker’s Percentage Scaler
Inspect base-100 ratios and scale to a target batch. The calculator runs privately in your browser and is designed to make the assumptions behind the answer visible.
What to have ready
Start with a tested baseline formula, measured weights, the unit used by the full batch, and your actual finished yield or process loss.
How to use the result
Treat the output as a controlled batch draft. Record the assumptions, run a small test, and approve the result only after checking quality and safety.
Complete workflow guide
Bakery formulation and scaling
Baker’s percentages make recipe math easier, but consistent bread and pastry also depend on temperature, equipment, timing, handling, and the amount you can actually sell.
Learn the workflow
Helpful guides for this calculator
Craft & FormulationScent Stacking Is the Next Big Thing—Here's How Makers Can Use It
Turn the scent-stacking trend into a coherent product system for candles, soap, body care, and home fragrance—without multiplying formulas into chaos.
Read the guide →Recipes & ProductionProduct Specifications and Change Control for Growing Product BusinessesCreate useful specifications and control formula, supplier, process, package, label, and claim changes from request through verification.
Read the guide →Recipes & Production8 Ways to Reduce Batch-to-Batch Variation Without Hiding ProblemsReduce production variation through controlled formulas, material specifications, measurements, process parameters, equipment, training, sampling, and deviation review.
Read the guide →Ready for the connected version?
Turn the calculation into a repeatable workflow.
Batch Scale connects recipes, materials, costs, inventory, production, sales, and your storefront in one workspace.