GFR Calculator
Calculate your estimated Glomerular Filtration Rate (eGFR) using the MDRD Study equation. This calculation helps determine your kidney function and CKD stage if applicable.
About this Calculator
This calculator uses the MDRD Study equation to estimate GFR. The calculation takes into account your serum creatinine level, age, gender, and race to provide an estimate of your kidney function.
The MDRD equation is one of several methods to estimate GFR. Your healthcare provider may use different equations or additional factors to determine your kidney function.
CKD stages are generally defined as:
- Stage 1: GFR ≥ 90 mL/min/1.73m² (with kidney damage)
- Stage 2: GFR 60-89 mL/min/1.73m² (with kidney damage)
- Stage 3: GFR 30-59 mL/min/1.73m²
- Stage 4: GFR 15-29 mL/min/1.73m²
- Stage 5: GFR < 15 mL/min/1.73m²