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Kidney GFR Creatinine Clearance Calculator

CrCl = (140 − age) × weight / (72 × Scr) × F — renal function estimate.

Estimates creatinine clearance (CrCl) using the Cockcroft-Gault formula to assess kidney function for drug dosing adjustments.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

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

CrCl = (140−age) × weight / (72 × Scr); ×0.85 if female

In depth

Estimates creatinine clearance (CrCl) using the Cockcroft-Gault formula to assess kidney function for drug dosing adjustments.