CR Clearance Calculator

Total (actual) body weight. Ideal and adjusted weights are derived from height.
Ideal and adjusted body weight both require a height.
Needed for ideal/adjusted body weight and for the BSA-normalised clearance.
Creatinine clearance
88.9 mL/min
Creatinine Clearance Calculator (Cockcroft-Gault)
Weight used
80.00 kg
Weight basis used
Actual (total) body weight
Serum creatinine
1.000 mg/dL
Worked out from Cockcroft DW, Gault MH. Prediction of creatinine clearance from serum creatinine. Nephron 1976;16(1):31-41 and 3 other sources.
Cockcroft-Gault is unnormalised (mL/min), not mL/min/1.73 m^2; do not compare it directly with a reported eGFR.
Educational estimate only. Cockcroft-Gault is an estimate of clearance, not a measurement, and renal drug dosing decisions belong to a prescriber.

How this is worked out

4 steps
  1. Serum creatinine in conventional units = 1.0000 mg/dL
  2. Weight used (Actual (total) body weight) = 80.00 kg
  3. (140 - age) = 140 - 60 = 80
  4. CrCl = 80 x 80.00 / (72 x 1.0000) = 88.89 mL/min

Results are general information, not financial, tax, legal, medical or engineering advice.