eGFR / Kidney Stage Reference
Map an eGFR result to its KDIGO CKD stage — with the 'one number isn't a diagnosis' context.
CKD is diagnosed by eGFR *plus* markers of kidney damage (like protein in urine) persisting over 3+ months — a single low eGFR can come from dehydration, a recent meal, or a muscular/older body throwing off the creatinine estimate. A G2 (60–89) reading alone, with no protein and stable over time, is often just normal aging. Always interpreted by your doctor alongside the urine albumin test.
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.
Map an eGFR result to its KDIGO CKD stage — with the 'one number isn't a diagnosis' context. The eGFR / Kidney Stage Reference is a free, private egfr stage tool — every result computes instantly in your browser with no sign-up and no data upload.
About eGFR / Kidney Stage Reference
CKD is diagnosed by eGFR *plus* markers of kidney damage (like protein in urine) persisting over 3+ months — a single low eGFR can come from dehydration, a recent meal, or a muscular/older body throwing off the creatinine estimate. It applies KDIGO stages: G1 ≥90, G2 60–89, G3a 45–59, G3b 30–44, G4 15–29, G5 <15. Use the eGFR / Kidney Stage Reference 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 eGFR / Kidney Stage Reference
- 1Enter your details in the eGFR / Kidney Stage Reference 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 eGFR / Kidney Stage Reference?
- ✓Instant egfr stage 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 (KDIGO 2012 CKD Evaluation and Management Guideline)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the eGFR / Kidney Stage Reference work?+
CKD is diagnosed by eGFR *plus* markers of kidney damage (like protein in urine) persisting over 3+ months — a single low eGFR can come from dehydration, a recent meal, or a muscular/older body throwing off the creatinine estimate. The calculation uses the formula: KDIGO stages: G1 ≥90, G2 60–89, G3a 45–59, G3b 30–44, G4 15–29, G5 <15. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the eGFR / Kidney Stage Reference accurate, and what is it based on?+
The method is traceable to authoritative sources: KDIGO 2012 CKD Evaluation and Management Guideline. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the eGFR / Kidney Stage Reference 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 eGFR / Kidney Stage Reference for?+
It's commonly used for egfr stage, ckd stage chart, kidney function stage. Map an eGFR result to its KDIGO CKD stage — with the 'one number isn't a diagnosis' context.
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