Soap & Lye Calculator Ultimate Tool


Empower your soap making journey with precision and intelligence!

Craft Your Perfect Soap Recipe, Effortlessly!
Say goodbye to complicated calculations and guesswork! Quickly and easily formulate your natural soap recipes with instant, detailed insights into exactly how your soap will turn out. See predicted soap properties like hardness, cleansing power, conditioning, and get a full fatty acid breakdown.

Handles lye (NaOH & KOH) calculations automatically, and seamlessly switch between grams, ounces, pounds, or percentages with instant conversions.

Unlock AI-Powered Soapmaking!
Go beyond the basics! Use AI to analyze your existing formulas for deeper understanding, or let our AI generate unique recipes for you! Get detailed expected outcomes powered by intelligence.

Intuitive & Interactive Design
Designing is a breeze with our real-time, interactive interface. Watch interactive gauges instantly update as you adjust ingredients, showing you the immediate effect on your soap's qualities! Explore a comprehensive oil library with detailed attributes and fatty acid properties, complete with powerful sorting and search tools. Easily add your own custom oils, infused oils, fragrances, and powders.

Professional Reports
Generate beautiful, detailed PDF reports for your records or to share! These reports outline your formula, ingredients, water/lye amounts, fatty acid breakdown, predicted soap qualities, and even highlight potential skin benefits of your recipe!

Available in English, Spanish, French, Portuguese,Bahasa Indonesia and Chinese (Simplified).

Soap Calclator Ultimate Branding
Soap Calculator Ultimate Interactive Guages
SoapCalc Ultimate Intuitve Sorting

Your Natural Soap Lab in Your Pocket!


Want to formulate natural soap recipes fast and get predictable results with accurate Lye calculations and AI Assistance

This app makes it quick and easy! Design your next creation in moments and get instant, detailed feedback on expected soap properties (hardness, cleansing, conditioning, etc.) and fatty acid composition.

We've got your lye covered (NaOH & KOH included!), and you can work in grams, ounces, pounds, or percentages with automatic conversions built-in.

Features to Elevate Your Craft

Tap into the power of AI! Analyze your formulas to refine them, or get inspired by AI-generated recipes. Get detailed predicted outcomes for every batch.

Interactive Formulation Fun

Our intuitive interface brings your recipe to life! Real-time interactive gauges show you the instant impact of ingredient changes. Explore a vast, searchable database of oils with rich details, or easily define your own custom ingredients (oils, infused oils, fragrances, powders).

Detailed Reports, Including Skin Benefits!

Create professional PDF reports summarizing your formula, ingredients, fatty acid breakdown, and soap qualities. Plus, generate reports that specifically outline the potential skin benefits your unique recipe might offer!

Create beautiful, predictable soaps with ease and confidence!

General Features

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Interactive Guages

Interactive guages for Hardness, Cleansing, Conditioning etc show the effect of an ingredient in the formula in realtime.

Soap Calculator Ultimate screenshot Oil Selection
Comprehensive Oil List

A large and comprehensive Oil list is availanle in the app with detailed attributes and fatty acid properties. Many sorting options and search funtionality is also included making it easlier to find the right Oil.

Soap Calculator Ultimate Detailed Reporting
Detailed Reporting

Detailed PDF reports are generated outlinging the formula Water, Lye and ingredients. Additionaly it outines the Fatty acid breakdown and outlines potential Skin Benefits. It also reports on the Qualities of the Soap that the formula would produce. Sample Report

Embedded Ai

Soap Calculator Ultimate AI Suggested Recipes
Generate an Ai assisted Formula

Use Ai to help inspire your creativity. Use the simle Ai prompt generator to allow Ai suggest a formula with your desired outcome. Select the Hardness level and enter some qualities you would like the Soap to achieve (e.g. help heal scaring).

Soap Calculator AI screenshot
Ai Suggestion Markdown

Ai suggests a detailed formula/recipe for yor inspiration, including the reasoning for the Oil selection, potential skin Benefits, Guidlines, Potential Additives and Marketing Information.

Soap Calculator Ultimate AI Analysis
Detailed Analysis

Get a detailed Ai Assisted Analysis of the likely otcome of the Soap Formula. Allowing to understand the Potential Qalities and Benefits of your formula. Get a assistance of the potential outcome before the effort of making the Soap to see the outcome.

Oil Selection and Sorting

SoapCalc Ultimate Oil & ingredient sorting
Oil Selection

There are many Oils to select from for your formula. It can be quite daunting and time consuming to find the correct Oil(s). The App helps to make it easier to find the correct Oil using various techniques.

Soap Calculator Ultimate Oil Searching screenshot
Oils Search

The App allows to seach for your specific Oil without having to scroll through a myriad of Oils. Combined with Multi-Lingual support you can find the Oil easily.

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Oil Sorting

In addition, you can sort the Oils based on their relative properties and effects on the Formla. Hardness, Cleansing, Conditioning, Creamy, Bubbly, INS Lasting. This allows sort in ascending and descending order to find an Oil with the desired impact.

Control the Settings

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Adjust Formula Settings

Use the Settings menu option to control your formula and caclulations. Use it to change Lye, weight type and language

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Formula & Language

TIn the settings section you can adjust the Fatty acid Discount %, and the Water to Oil Ratio/Percentage. Giving you control of your formula as you wish. THe presets ae 5% and 38% respectively. You can also select your language (English, French, Spanish, Portugese, Bahasa Indonesia or Chinese (Simplified). Changing the language also adjust the Oil Names appropriately.

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Lye & Weight Types

You can adjust the Lye type (NaOH, KOH) and the Weight Entry type (gr, oz, lb). This will allow you work in your own comfort zone and with your specified Lye. The Lye calculations are automatically adjusted.