Soap Lye Calculator

Calculate the precise amount of lye needed for soap recipes quickly and accurately, ideal for soap makers and formulators.

Soap Lye Calculator IconMinimalist vector icon representing soap formulation with a beaker and thought bubbles

Check It Yourself

About This Tool

Our soap lye calculator is a dedicated online tool designed for soap makers seeking accurate, reliable measurements of lye in their recipes. Simply input your oils’ weights, select the oils from a predefined list, and adjust the superfat percentage. The calculator then computes the exact grams or ounces of sodium hydroxide required for saponification, considering your recipe's oil blend.

This tool is ideal for hobbyists, small business owners, and professional formulators striving for consistent, safe soap products. It supports multiple oil types, offers optional adjustments for soap hardness and cure times, and provides detailed outputs including safety tips. Whether you’re creating cold process soaps or experimenting with new formulations, this tool helps you craft balanced and safe recipes accurately.

Designed with simplicity and precision, the calculator ensures users avoid common formulation errors, minimizes waste, and optimizes production safety. Advanced features like calculation history and export options are available for users aiming for long-term project management or batch documentation.

How to Use

1. Select or input each oil's weight in grams or ounces.
2. Choose oil types from the dropdown list.
3. Enter your desired superfat percentage (default is 5%).
4. Click the ‘Calculate’ button.
5. Review the resulting lye amount and formulation details displayed below.

FAQs/Additional Resources

Find Quick Answers

How do I calculate lye for different oils?

Can I adjust the superfat percentage?

What units does the tool support?

Is this tool suitable for professional soap makers?

What if I make a mistake in input?

User Reviews

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John Doe

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John Doe

CEO of Company

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John Doe

John Doe

CEO of Company

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John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

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