Calculate GFR by Hand
Introduction & Importance
Glomerular Filtration Rate (GFR) is a key indicator of kidney function. Calculating GFR by hand is crucial for early detection and management of chronic kidney disease (CKD).
How to Use This Calculator
- Enter your age, serum creatinine level, and select your gender.
- Click ‘Calculate’.
- View your GFR result and chart below.
Formula & Methodology
The formula used is the CKD-EPI equation:
GFR = 141 × min(Sx/Px, 1)α × max(Sx/Px, 1) – 1.209 × 0.993Age × 1.018[if female]
Real-World Examples
Data & Statistics
| GFR (mL/min/1.73m2) | Category |
|---|---|
| ≥90 | Normal |
| 60-89 | Mildly decreased |
Expert Tips
- Regularly monitor GFR to track kidney health.
- Limit protein intake to reduce creatinine production.
- Stay hydrated to support kidney function.
Interactive FAQ
What is the normal GFR range?
GFR of 90 or above is considered normal.
For more information, visit the National Kidney Foundation.