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Creatinine Clearance Calculator (Cockcroft-Gault & Ideal Weight)

Clinical pharmacology and renal audit. The classic Cockcroft-Gault equation (1976) remains the regulatory FDA/EMA standard for antibiotic and narrow therapeutic index drug dosing.

Input Parameters

Patient Biological Sex

Patient Age (años)

Actual Body Weight (kg)

Height (cm)

Serum Creatinine (mg/dL)

Instant Calculation Result

Estimated Output

Active in Real-Time

Adjust values on the left to calculate live results.

Formula: Cockcroft-Gault Formula (1976): CrCl (mL/min) = [(140 - Age) × Weight_kg] / [72 × Serum_Creatinine_mg/dL] × (0.85 if Female). Devine IBW: M = 50 + 2.3(Height_in - 60), F = 45.5 + 2.3(Height_in - 60).

In-Depth Guide & Mathematical Methodology

💊 FDA & EMA Drug Dosing Standards (CrCl vs eGFR)

Unindexed CrCl (mL/min): Used directly in renal dose adjustment tables for antibiotics (e.g. vancomycin, aminoglycosides, DOACs).

Obesity Adjustment: In obese patients (Actual Weight > 120% Ideal Weight), using Adjusted Body Weight (AdjBW) avoids overestimating renal clearance.

Frequently Asked Questions (FAQ)

What is the Creatinine Clearance Calculator (Cockcroft-Gault & Ideal Weight) and how does it work?

Clinical pharmacology and renal audit. The classic Cockcroft-Gault equation (1976) remains the regulatory FDA/EMA standard for antibiotic and narrow therapeutic index drug dosing.

How do I use this Creatinine Clearance Calculator (Cockcroft-Gault & Ideal Weight)?

Select patient biological sex. Enter age in years. Enter current body weight in kg. Enter height in cm. Enter serum creatinine level in mg/dL. View calculated Creatinine Clearance (CrCl) in mL/min for medication adjustments.

What mathematical formula is used in this calculation?

Cockcroft-Gault Formula (1976): CrCl (mL/min) = [(140 - Age) × Weight_kg] / [72 × Serum_Creatinine_mg/dL] × (0.85 if Female). Devine IBW: M = 50 + 2.3(Height_in - 60), F = 45.5 + 2.3(Height_in - 60).

Is the Creatinine Clearance Calculator (Cockcroft-Gault & Ideal Weight) on FindCalculator free to use?

Yes, all 330+ interactive tools on FindCalculator.online are 100% free, run directly in your browser without registration, and do not store your private calculation data.

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