Last updated: March 2, 2026 by Sarah Chen

Estimate Kidney Function with Cockcroft-Gault

Formula

The Cockcroft-Gault equation estimates creatinine clearance (CrCl), a measure of kidney function used for drug dosing adjustments. It uses age, weight, sex, and serum creatinine level.

Normal CrCl is approximately 90-140 mL/min. Values below 60 mL/min suggest significant kidney impairment. Many medications require dose reductions when CrCl drops below certain thresholds.

Common use cases:

  • Drug dosing adjustments for kidney function
  • Monitoring kidney health over time
  • Clinical assessment of renal function

Frequently Asked Questions

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Sarah Chen

Financial Analyst, CFA

Sarah is a Chartered Financial Analyst with over 8 years of experience in investment management and financial modeling. She specializes in retirement planning and compound interest calculations.

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