For educational and reference use only. These calculators do not replace clinical judgement, local protocols, or a qualified clinician. Verify every result independently before it informs patient care.
Body imaging
eGFR (CKD-EPI 2021)
Estimates glomerular filtration rate from serum creatinine using the 2021 CKD-EPI creatinine equation, which removes the race coefficient. eGFR is a key input for iodinated- and gadolinium-based contrast decisions.
Validated for adults (≥18 years).
Result
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Enter all values to calculate.
Formula
eGFR = 142 × min(Scr/κ, 1)^α × max(Scr/κ, 1)^−1.200 × 0.9938^Age × 1.012 [if female]; κ = 0.7 (F) / 0.9 (M), α = −0.241 (F) / −0.302 (M), Scr in mg/dL.
References
Disclaimer
G1/G2 categories require evidence of kidney damage (e.g. albuminuria) to diagnose CKD. Not validated for acute kidney injury, extremes of body habitus, pregnancy, or age <18.
For educational and reference use only. These calculators do not replace clinical judgement, local protocols, or a qualified clinician. Verify every result independently before it informs patient care.
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