How to use the kidney function egfr calculator
Estimate kidney filtration rate from serum creatinine, age and sex using the MDRD equation. Enter serum creatinine, age, sex in the fields above; the estimated gfr (mdrd) is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “eGFR calculator”, “kidney function estimate”, “MDRD GFR”, “calculate kidney function egfr”, “find estimated gfr”.
Formula
Variables
- scr — Serum creatinine (mg/dL)
- age — Age (years)
- sex — Sex
Worked example
With serum creatinine = 1.0 mg/dL, age = 50 years, sex = Male, the calculator gives estimated gfr (mdrd) ≈ 79.09466 mL/min/1.73 m².
Frequently asked questions
What is the kidney function egfr calculator used for?
Estimate kidney filtration rate from serum creatinine, age and sex using the MDRD equation. It helps with questions such as “eGFR calculator”, “kidney function estimate”, “MDRD GFR”.
What is the formula for the kidney function egfr calculation?
Estimated GFR (MDRD) (mL/min/1.73 m²) = 175 × scr^(-1.154) × age^(-0.203) × sex. Here scr is serum creatinine (mg/dL), age is age (years), sex is sex.
What inputs do I need for the kidney function egfr (mdrd) calculator?
You need serum creatinine in mg/dL, age in years, sex. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the kidney function egfr calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the kidney function egfr result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.