This soap lye reference table shows the lye needed for a range of oil weight values, assuming a sap value (lye per g oil) of 0.135. Every figure is computed with the same engine that powers our Soap Lye Calculator, so the numbers are exact.
| Oil weight | Lye needed |
|---|---|
| 250 g | 33.8 |
| 500 g | 67.5 |
| 750 g | 101.3 |
| 1,000 g | 135.0 |
| 1,500 g | 202.5 |
| 2,000 g | 270.0 |
| 3,000 g | 405.0 |
| 5,000 g | 675.0 |
| 7,000 g | 945.0 |
| 10,000 g | 1,350.0 |
How to use this table
Find the row closest to your oil weight and read across to the lye needed. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Soap Lye Calculator for a precise answer.
Need a value that is not in the table? — the Soap Lye Calculator does it instantly, for free, with the formula and a worked example built in.
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