Free eGFR Calculator
Estimated glomerular filtration rate (kidney function) using CKD-EPI.
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Inputs
Result
eGFR
95 mL/min/1.73m²
Normal (G1)
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Short answer
Estimated glomerular filtration rate (kidney function) using CKD-EPI.
What is the eGFR Calculator?
Estimated glomerular filtration rate (kidney function) using CKD-EPI.
How does the eGFR Calculator work?
Enter the inputs above and read the result.
Formula
Variables
ScrSerum creatinine (mg/dL)
Explanation
The 2021 CKD-EPI equation estimates kidney filtration rate from creatinine, age and sex.
Examples
Applications
Advantages
Limitations
- This tool provides general estimates only and is not medical advice; always consult a doctor or qualified professional.
- eGFR should be interpreted by a clinician alongside other kidney function markers.
Common mistakes
Tips
Related concepts
The eGFR Calculator sits inside the Health Calculators hub, in the clinical & medical metrics cluster. Laboratory and screening ratios. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding eGFR
Estimated glomerular filtration rate (kidney function) using CKD-EPI. Within health calculators, egfr belongs to the clinical & medical metrics cluster, where it shares terminology and assumptions with closely related tools.
Learning how egfr is calculated
The 2021 CKD-EPI equation estimates kidney filtration rate from creatinine, age and sex. Working through the variables one at a time — Scr — makes the result reproducible by hand and easier to sanity-check.
Using egfr to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How egfr compares with related measures
renal function, reference range, screening threshold, risk category all describe adjacent aspects of clinical & medical metrics. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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