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Creatinine Clearance (Cockcroft–Gault) Calculator

CrCl = (140−Age) × Weight / (72 × SCr) × 0.85(female).

Estimates creatinine clearance using the Cockcroft–Gault equation. Used to adjust drug doses in renal impairment. CrCl < 60 mL/min indicates moderate renal dysfunction.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

yr
kg
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

CrCl = (140−Age) × Weight / (72 × SCr) × 0.85 [female]

In depth

Estimates creatinine clearance using the Cockcroft–Gault equation. Used to adjust drug doses in renal impairment. CrCl < 60 mL/min indicates moderate renal dysfunction.