🫘 Creatinine Clearance (Cockcroft-Gault)
Estimate creatinine clearance with the Cockcroft-Gault equation for renal drug dosing.
Creatinine Clearance (Cockcroft-Gault)
Age (years)
Weight (kg)
Serum creatinine (mg/dL)
Sex
When to use
Renal dose adjustment where labels reference creatinine clearance.
How it works
CrCl = (140 − age) × weight × (0.85 if female) / (72 × SCr). SCr in mg/dL.
Key points
- Still referenced by many drug labels for dosing.
- Choose actual, ideal or adjusted weight per drug guidance.
- Not BSA-normalised — use CKD-EPI for CKD staging.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.