Free formulation utilities

Cosmetic formulation calculators that show their work.

Run soap, emulsion, and batch conversions in your browser. No signup, no hidden math: the inputs, method, and result stay in view while you work.

01Soap Lye CalculatorNaOH + KOH · quality profile 02HLB Calculatoroil phase · blend ratio 03Unit Converterpercent · weight

Choose the math. See every step.

Start with the utility you need. Each one keeps the method, assumptions, and practical limits close to the result.

Soap Lye Calculator

NaOH + KOH · quality profile · cure estimate

Calculate NaOH or KOH, water ratios, superfat, and seven soap quality measures.

HLB Calculator

oil phase · blend ratio · match score

Find a required HLB and calculate the ratio for a low- and high-HLB emulsifier pair.

Unit Converter

percent · weight · volume · density aware

Convert percent, weight, and volume with optional batch-size and density context.

When the calculation belongs to a workflow.

Inside Formuley, calculator inputs and results can stay beside the formula, cost, batch, and release work they inform.

Connected calculators

Move calculation results into the formula, batch, and release records that need them.

Formula context

Reuse saved percentages and materials instead of rebuilding the same inputs by hand.

Cost context

Keep batch math close to unit cost, pricing, and margin decisions.

Guided review

Open the right calculation and carry its result into the next practical check.

More calculations inside Formuley.

These connected tools cover common concentration, stability, packout, and release questions. Availability varies by plan and mode.

Fragrance load

Certificate-aware starting limits and formula context.

Connected

Preservative use level

Use-level screening with a fuller builder mode on Pro.

Connected

Active matter

Surfactant concentration and blend adjustments.

Connected

Concentration and assay

Stock strength, assay correction, and carried solvent math.

Connected

Solubilizer ratio

Starting ladders for clear fragrance and oil-soluble systems.

Connected

Neutralization and thickener

Polymer and neutralizer planning for gels and emulsions.

Connected

pH adjustment

Acid and base planning for a target pH.

Connected

Density and fill

Packout, overfill, and declaration planning.

Connected

Overage and yield

Process-loss planning for saleable output.

Connected

SPF contribution

Theoretical UV-filter contribution planning.

Connected

Keep the result with the work.

Create a free account to connect formulas, materials, costs, and production records as the work moves forward.

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