Side-by-side comparison helps you choose the right calculator for a specific clinical question.
Nephrology
Calculate measured creatinine clearance from a 24-hour urine collection. More accurate than estimated GFR in certain populations.
Formula
CrCl (mL/min) = (UCr × V) / (SCr × T). UCr = urine creatinine (mg/dL), V = volume (mL), SCr = serum creatinine (mg/dL), T = time (minutes).
Inputs
Clinical
Calculate estimated glomerular filtration rate (eGFR) using the CKD-EPI 2021 equation. Assess kidney function and CKD staging from serum creatinine.
Formula
CKD-EPI 2021: 142 × min(Scr/κ, 1)^α × max(Scr/κ, 1)^-1.200 × 0.9938^Age × (1.012 if female)
Inputs