Free nitrox & trimix gas blending calculator (web + iOS/Android)
Hi r/diving
I built a free gas blending calculator for nitrox and trimix, and wanted to share it with you all.
- Visual fill recipe (He, O₂, top-up)
- Advanced mode with up to three arbitrary gases.
- List of common and custom mixes (click on start/end mix)
- Real-gas (Z-factor) accurate (ideal gas and Van der Waals for comparison).
- MOD & END for your ppO₂
- Metric or imperial
- Configuration stored locally.
- Free, no ads, no downloads, no installs — web + iOS/Android
- Also works as a tool in Claude/ChatGPT/Gemini (add url as connector/mcp server)
Available at https://arcusblender.org
Feedback welcome. Dive safe. Cheers!
u/BillPostersIsInnocnt — 5 days ago