Cold Process Soap Calculator
Calculate lye, water, and oil quantities for cold process soap making using SAP values.
1.8Kuses
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Safety: Lye (NaOH) is caustic. Wear gloves and eye protection. Always verify lye calculations with a secondary soap calculator before making soap.
Oils
%
%
%
%
NaOH (Lye)
4.66 oz
Water
2.85 oz
Total Batch
39.5 oz
Hardness
43
Cleansing
20
Conditioning
53
Soap Making Guide
Cold process soap uses NaOH (sodium hydroxide). Standard superfat is 5%. Always add lye to water, never water to lye. Cure bars 4-6 weeks before use.
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Disclaimer: This tool is provided as-is for informational and educational purposes only.