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eGFR (CKD-EPI 2021) Calculator

Race-free CKD-EPI estimate of glomerular filtration rate.

Compute the estimated glomerular filtration rate (eGFR) using the 2021 race-free CKD-EPI creatinine equation, from serum creatinine, age, and sex.

Priya Venkatesan By Priya Venkatesan
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mg/dL

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

CKD-EPI 2021 (race-free): eGFR = 142 · min(Scr/κ, 1)^α · max(Scr/κ, 1)^(−1.200) · 0.9938^age · (1.012 if female), with κ = 0.7 (F) or 0.9 (M), α = −0.241 (F) or −0.302 (M).

In depth

Compute the estimated glomerular filtration rate (eGFR) using the 2021 race-free CKD-EPI creatinine equation, from serum creatinine, age, and sex.