Lye Calc: Soap Recipes
Lye calculator for soap making: NaOH, KOH, superfat, water, soap qualities and batch cost.
A soap making calculator that gets the lye right and never loses your recipes. Add oils by weight or percent, set superfat and water, and see exactly what to weigh.
Free
- NaOH, KOH or dual lye, with lye purity
- Lye amounts from published SAP values
- Superfat, water and fragrance
- Soap qualities and fatty acid profile
- 78 oils, butters and fats; 8 starter recipes
- Save up to 5 recipes
Pro
- Unlimited saved recipes
- Batch cost and cost per bar
- Wholesale and retail prices with your profit per bar
- Printable recipe sheet (PDF)
- Resize any recipe to a new batch size
Try it in your browser
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