ORS Recipe Calculator (WHO Formula)
The exact WHO oral-rehydration recipe scaled to any batch size — the formula that has saved ~50 million lives.
The magic is sodium-glucose co-transport: the gut absorbs sodium *only when paired* with glucose, which pulls water in — Lancet called ORS 'potentially the most important medical advance of the century'. The simplified home recipe (6 tsp sugar + ½ tsp salt per litre of clean water) is the emergency version; packets add potassium and citrate. Too much salt is dangerous — measure level spoons.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
The exact WHO oral-rehydration recipe scaled to any batch size — the formula that has saved ~50 million lives. The ORS Recipe Calculator (WHO Formula) is a free, private ors recipe tool — every result computes instantly in your browser with no sign-up and no data upload.
About ORS Recipe Calculator (WHO Formula)
The magic is sodium-glucose co-transport: the gut absorbs sodium *only when paired* with glucose, which pulls water in — Lancet called ORS 'potentially the most important medical advance of the century'. It applies low-osmolarity ORS (2002): Na 75 mmol/L, glucose 75 mmol/L, 245 mOsm/L. Use the ORS Recipe Calculator (WHO Formula) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use ORS Recipe Calculator (WHO Formula)
- 1Enter your details in the ORS Recipe Calculator (WHO Formula) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use ORS Recipe Calculator (WHO Formula)?
- ✓Instant ors recipe result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (WHO/UNICEF — Oral Rehydration Salts: production of the new ORS, 2006)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the ORS Recipe Calculator (WHO Formula) work?+
The magic is sodium-glucose co-transport: the gut absorbs sodium *only when paired* with glucose, which pulls water in — Lancet called ORS 'potentially the most important medical advance of the century'. The calculation uses the formula: low-osmolarity ORS (2002): Na 75 mmol/L, glucose 75 mmol/L, 245 mOsm/L. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the ORS Recipe Calculator (WHO Formula) accurate, and what is it based on?+
The method is traceable to authoritative sources: WHO/UNICEF — Oral Rehydration Salts: production of the new ORS, 2006. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the ORS Recipe Calculator (WHO Formula) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the ORS Recipe Calculator (WHO Formula) for?+
It's commonly used for ors recipe, oral rehydration solution, homemade ors. The exact WHO oral-rehydration recipe scaled to any batch size — the formula that has saved ~50 million lives.
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