Creatinine Clearance Calculator

Calculate creatinine clearance to assess kidney function using Cockcroft-Gault formula.

Free to use
12,500+ users
Updated January 2025
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Professional Use Only

Creatinine Clearance Calculator

CRITICAL WARNING

This tool is intended ONLY for licensed healthcare professionals (physicians, pharmacists, nurse practitioners, and other qualified medical personnel). Kidney function calculations directly affect medication dosing, contrast administration decisions, and nephrology referrals. This calculator is a reference tool and must NOT replace clinical judgment or current clinical guidelines.

Medication dosing: Many medications require dose adjustment based on renal function. Always verify current dosing guidelines.

Equation limitations: Different equations may give different results. CKD-EPI is generally preferred for most adults.

Clinical context: Consider acute vs chronic kidney disease, volume status, and recent nephrotoxic exposures.

Contrast procedures: GFR affects contrast safety decisions. Follow institutional protocols for contrast administration.

By clicking "I Acknowledge - Proceed", you confirm that you are:

  • A licensed healthcare professional authorized to interpret laboratory values
  • Using this tool as a reference aid, not as a substitute for clinical judgment
  • Aware that medication dosing decisions require verification with current references
  • Committed to considering clinical context and patient-specific factors

This acknowledgment does not constitute medical advice or establish liability protection