Brainstorm in plain language. Trust the lye math.
The first soapmaking calculator you can use right inside ChatGPT.
Create freely. Calculate confidently.
Soapmaking depends on getting the numbers right. When the math is off, the whole batch is off. Simple SoapCalc takes care of the calculations so you can focus on the craft, not the chemistry.
Inside ChatGPT, you can explore soap ideas in plain language. Simple SoapCalc turns each recipe into precise, dependable lye and water calculations — so you can experiment, adjust, and refine without breaking your flow.
ChatGPT helps you express what you want to make. Simple SoapCalc keeps the calculations steady while you explore.
When ChatGPT generates a recipe, you'll see it laid out as a clean visual card right in the conversation — oils with percentages, lye and water amounts, soap properties, and a fatty acid breakdown. Same data you'd see in the mobile app.
You don't need a finished idea to begin. A feeling, a curiosity, or a half-formed thought is enough.
Simple SoapCalc is a place to think out loud about soap. You can explore, adjust, and change direction — knowing the calculations will stay steady underneath.
These don't have to be perfect questions. They're just places to begin.
You'll see precise lye and water amounts right away, along with a clear sense of how the soap will behave and feel.
Wondering "what if?" is a good place to start.
Simple SoapCalc works across ChatGPT and the mobile app. Both use the same trusted calculation engine. The difference is how you start.
Same calculator. Same numbers. Different interface.
No spreadsheets. No mental math. No guessing at the safety numbers.
Ideas you can refine with confidence — the calculations stay steady underneath.
Create freely. Calculate confidently.
No. Simple SoapCalc runs right inside the ChatGPT chat window — there's nothing to install. Just open ChatGPT, ask for a soap recipe, and the Simple SoapCalc engine does the lye, water, and SAP math in the conversation. (The Simple SoapCalc mobile app is separate and optional — your recipes can sync between ChatGPT and the app, ready on your phone when you're ready to soap.)
It would be — if the AI had the final say. It doesn't. ChatGPT suggests oils and ideas, Simple SoapCalc runs the real lye and water math, and you make every final call. Nothing gets made until you decide it's right. The AI hands you a calculated draft; you're still the soapmaker.
That instinct is exactly right — and here it's already done for you. Simple SoapCalc is the calculator, working inside the chat. When a recipe appears, the lye and water math is already computed by the same trusted engine you'd check it in. No copying into a separate calculator to verify — the verification is built in.
Yes. You can describe the soap you want in plain language and get precise, dependable lye and water amounts every time. You can stay focused on the idea, not the math.
Yes. ChatGPT and the Simple SoapCalc app use the same calculation engine and trusted values, so results are consistent across both experiences.
Yes, with a Simple SoapCalc Pro account. You can create, edit, and manage recipes inside ChatGPT, and they sync to your mobile app so you can keep refining.
You can describe recipes and get accurate lye and water calculations on the free tier — no Simple SoapCalc Pro and no ChatGPT Plus required. Saving, editing, and managing recipes in your Simple SoapCalc account requires Simple SoapCalc Pro. Some usage limits may apply depending on your ChatGPT plan.
No. Simple SoapCalc is an independent tool that integrates with the ChatGPT interface. OpenAI provides the conversational platform; Simple SoapCalc provides the calculation engine.
Use ChatGPT when you're exploring ideas, refining recipes, or playing with concepts. Use the mobile app when you're ready to make soap at your workbench — it's faster for hands-on workflow and works offline.
Try Simple SoapCalc inside ChatGPT for conversational recipe building, or download the mobile app for offline access and a tactile, hands-on workflow.
Try in ChatGPT → Get the Mobile App →
Visit our Support page or email support@simplesoapcalc.com.
