Open-Source Formulation Calculators

• HLB Blending Calculator

  Calculate the exact ratio of two surfactants needed to reach a target HLB.

• Batch Scaler

  Scale formulation batches accurately by percentage and weight.

• Surfactant Active Matter Calculator

  Calculate total active surfactant matter in a cleansing system.

• Preservative Usage Rate Calculator

  Ensure your preservative systems stay within legal EU Annex V limits.

• Phase Volume Ratio Calculator

  Calculate the volumetric phase ratio of your emulsion.

• Fragrance Allergen Calculator

  Calculate if your fragrance allergens exceed EU declaration thresholds.

• Density & Volume Converter

  Convert between mass and volume for packaging sizing.

• pH Buffer Calculator

  Henderson-Hasselbalch estimator for acid/base ratios.

• Polymer Hydration Calculator

  Calculate minimum water requirements for polymeric rheology modifiers.

• Vitamin C Degradation Estimator

  Estimate relative stability of L-Ascorbic Acid based on pH and temp.

Why Client-Side?

Formulation data is proprietary. These tools run entirely in your browser using Javascript. No data is sent to a server. You can even save the HTML file and run it offline.