| Age in yrs | |
| Gender | Male Female |
| Weight | |
| unit | kg lb |
| Serum Creatinine | |
| unit | mg/dL µmol/L |
Cockcroft-Gault Method :
GFR for male :
weight (kg) × (140 minus age in years)/72 × serum creatinine (mg/dL)
GFR for female :
GFR(females) = GFR(males) x 0.85
Technically, use ideal body weight:
Men: 50kg + 2.3kg/inch over 5 ft
Women:45.5kg + 2.3kg/inch over 5 ft
Renal impairment:
Normal : >85 mL/min
Mild impairment: 60-85 mL/min
Moderate impairment: 30-59 mL/min
Severe impairment: < 30 mL/min