Creatinine Clearance

Creatinine Clearance (CrCl) Calculator – Cockcroft–Gault

Estimate kidney function with the Cockcroft–Gault CrCl equation, with optional BMI/height adjustments. Includes unit toggles and clinical interpretation.

100% Free Medical Calculator Unit Toggles

Cockcroft–Gault (CrCl) Calculator

Enter patient information to estimate creatinine clearance (CrCl, mL/min)

Sex

Age *

Units: years (valid 1–120)

Weight *

Norm: 2–330 lbs / 0.9–150 kg

Serum Creatinine *

Norm: 0.7–1.3 mg/dL / 61.9–114.9 μmol/L

Height (optional)

Norm: 60–84 in / 152–213 cm

When to Use the Creatinine Clearance Calculator

Kidney disease screening and monitoring
Medication dosing adjustments for renally cleared drugs
Assessing kidney function in diabetes and hypertension
Baseline and follow-up evaluation during nephrotoxic therapy

Related tools: eGFR Calculator · BSA/BMI Calculator