Note: After clicking Calculate Recipe, click View or Print Recipe to see water and lye amounts.

Formulating your own cold process soap recipes is easy! The key is to start simple and go from there. Learn more below, and find cold process soap making supplies here. Lye is safe to work …

Advanced and beginner soap making calculator for soapmakers. Create solid, liquid and cream soaps. Save your recipes with pictures and add custom ingredients & instructions to share …

Free soap calculator for cold process and hot process soap making. Calculate precise lye amounts, water ratios, and oil properties for perfect bars.

Free online soap calculator and lye calculator for cold process and hot process soap making. Build custom soap recipes, calculate exact lye amounts, a...

The WSP Lye Calculator lets you play 'what if' with your soap recipe. You can easily change what oils are used and the formula percentages. The calculator will then compute the recipe and …

Use The Soap Calculator to create your very own cold processed or lye soap formulas. The Soap Calculator simplifies all of your formulating needs for making hand crafted soap.

Ready to make your next soap recipe? Effortless to use — accurate and reliable. Discover The Cosmetics Lab — the free, ad-free soap calculator trusted by thousands of soapmakers since …

Why is my soap not hardening properly? Soft soap can result from several factors: too much water in the recipe, insufficient hard oils (like coconut or palm), too high superfatting …

The Lye Calculator™ will calculate the amount of lye (either sodium hydroxide or potassium hydroxide) required to convert the specified amount of fats and oils to soap.