GFR - Cockcroft-Gault Method (Adult)
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Age in yrs
Gender Male Female
Weight
unit kg lb
Serum Creatinine
unit mg/dL micromole/L
R e s u l t s
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GFR
 
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GFR - Cockcroft-Gault Method (Adult)

Accurate estimation of the glomerular filtration rate (GFR) is essential for appropriate diagnosis and management of chronic kidney disease.

The Cockcroft-Gault equation is a common formula for estimation of GFR in adults; however, it has largely been superseded by the MDRD formula

Formula used:

Cockcroft-GaultMethod :

  • GFR for male: (140 - age) × wt(kg) / [72 × Serum Creatinine]
  • GFR for female: GFR(females) = GFR(males) × 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

Abbreviations:

  • GFR = Glomerular filtration rate

References

  • Cockcroft DW, Gault MH. Prediction of creatinine clearance from serum creatinine.Nephron. 1976;16(1):31-41.
  • Pierrat A, Gravier E, Saunders C, et al. Predicting GFR in children and adults: a comparison of the Cockcroft-Gault, Schwartz, and modification of diet in renal disease formulas. Kidney Int. 2003;64(4):1425-36.