eGFR (CKD-EPI simplified)

Estimated glomerular filtration rate using creatinine, age, and sex.

CKD-EPI creatinine equation (simplified)

Patient parameters

Adjust values, then click Calculate.

Age

0–120

Sex

Serum creatinine (mg/dL)

0–1000

Results

eGFR: 0 mL/min/1.73m²

What this calculator does

The CKD-EPI equation estimates glomerular filtration rate (eGFR) from creatinine, age, and sex. It is widely reported on laboratory panels and stages chronic kidney disease.

Formula and variables

Displayed formula: CKD-EPI creatinine equation (simplified)

The engine evaluates: eGFR (mL/min/1.73m²). Variable names match the input field keys so you can trace each step from entry to output.

How to use this tool

1. Open the eGFR (CKD-EPI simplified) and enter your values using the units shown beside each field.
2. Review that inputs are within the typical physiological range before you calculate.
3. Read the result together with the interpretation notes below and your local clinical context.

How to interpret the result

eGFR ≥90 with kidney damage markers may still indicate CKD. Values 60–89 suggest mild reduction; 30–59 moderate; 15–29 severe; below 15 indicates kidney failure range—always interpret with urine albumin, trends, and symptoms.

Clinical context

Renal estimates fluctuate with hydration, muscle mass, and acute illness. Trend values over time and correlate with urine studies and blood pressure control.

Limitations and disclaimer

This tool supports education and clinical triage only. It does not replace professional medical advice, diagnosis, or treatment. Reference ranges vary by laboratory, age, pregnancy status, and comorbidity. Always confirm critical decisions with institutional protocols and qualified clinicians.