Creatinine Clearance & Weight Charts

This guidance is for NHS Lothian staff to calculate creatinine clearance for antibiotic dosing. 

Use the calculator (NB: intranet only).

If Intranet calculator not available, calculate manually using the Cockcroft-Gault equation (see below):

CrCl (ml/min) = [ (140 - Age) X {weight* X 1.23(male) or 1.04(female)} ] / Serum creatinine**) 

*Use actual or Maximum Body weight, whichever is the lower

**If Cr <60 mmol/L, use a value of 60

Maximum body weight charts

Ideal body weight charts