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Renal Dose Adjustment via Cockcroft-Gault eGFR Calculator

CrCl = (140 − age) × wt × (0.85 if female) / (72 × SCr).

Compute creatinine clearance (CrCl, mL/min) via the Cockcroft-Gault formula for drug dose adjustment in renal impairment: CrCl = [(140 − age) × IBW × 0.85 (if female)] / (72 × serum creatinine mg/dL). Ideal body weight (IBW) is used for obese patients. Reports CrCl and the standard CKD stage.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

years
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)·wt·(0.85 if ♀) / (72·SCr).

In depth

Compute creatinine clearance (CrCl, mL/min) via the Cockcroft-Gault formula for drug dose adjustment in renal impairment: CrCl = [(140 − age) × IBW × 0.85 (if female)] / (72 × serum creatinine mg/dL). Ideal body weight (IBW) is used for obese patients. Reports CrCl and the standard CKD stage.