eGFR: normal range and what it means
Estimated kidney filtration rate — higher is better.
Normal range
Adult reference range.
- Low< 60 mL/min/1.73m²
- Borderline60 – 90 mL/min/1.73m²
- Optimal≥ 90 mL/min/1.73m²
What it measures
An estimate of how much blood your kidneys filter per minute. The headline number for kidney health.
What moves it
Age, creatinine, hydration and chronic conditions.
How to bring it into range
Blood-pressure and blood-sugar control, hydration, avoiding NSAID overuse.
How fast it responds
Slowly — months.
Also reported as: estimated gfr · gfr
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Common questions
- What is a normal eGFR level?
- Optimal: ≥ 90 mL/min/1.73m². Adult reference range.
- What does a high eGFR mean?
- A value above the reference band means eGFR is outside the range typical for a healthy adult. A single reading is rarely conclusive on its own — what matters is the trend across draws and the other markers around it, which is why HealthOS reads the whole panel together rather than one number at a time.
- How do I improve my eGFR?
- Blood-pressure and blood-sugar control, hydration, avoiding NSAID overuse.
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Reference ranges are general-population guidance compiled from common clinical laboratories, not a diagnosis. Lab-to-lab ranges differ. Always read your results with your doctor.