Lye Calculators - these external links offer a range of complexity for formulating your soaps.
The MMS is the very first online calculator I ever used.
MMS is a supplier similar to ourselves, and generously give access to their calculator to everyone.
It is still my go to calc as it is so simply set out.
It's always good practise to run your recipe through
a calculator in case of typo's.
Great for liquid soapers too is:
This calculator has lots of specific details and sap values