By ToolzHive
About this tool
Cockcroft–Gault creatinine clearance with actual, ideal and adjusted weight.
How to use Creatinine Clearance Calculator
- Enter sex, age, weight, height and serum creatinine.
- Read the clearance calculated with the recommended body weight.
- Compare the values for actual, ideal and adjusted weight.
Worked example
A 65-year-old man weighing 90 kg, 170 cm tall, with creatinine 1.1 mg/dL has a clearance of about 72 mL/min using adjusted body weight.
Why is Cockcroft–Gault still used when eGFR exists?
Most drug labels base their renal dose adjustments on Cockcroft–Gault clearance, so pharmacists still use it for dosing.
Which weight should I use?
A common rule is actual weight if below ideal, ideal weight up to 120% of ideal and adjusted weight above that. Follow your local guidance.
Can I use this to make treatment decisions?
It supports education and clinical decision-making but does not replace clinical judgment, local protocols or product information. Always double-check results.
Put this guide into practice
- Creatinine Clearance Calculator — Cockcroft–Gault creatinine clearance with actual, ideal and adjusted weight.