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eGFR Calculator

GFR calculator (glomerular filtration rate) and eGFR calculator (estimated glomerular filtration rate) using a variety of formulae including MDRD (Modified Diet in Renal Disease) and Cockcroft-Gault
       
Serum creatinine  
Creatinine units

 
Age (years)
 
Sex
 
Race

 
   

Calculated using the abbreviated MDRD formula as below:
eGFR (mL/min/1.73 m2) = 186 x serum creatinine (μmol/L)-1.154 x age (years)-0.203 x (0.742 if female) x (1.210 if African-American)

 

       
Serum creatinine  
Creatinine units

 
Age (years)
 
Weight (kg)  
Sex

 
   

Calculated using the adjusted Cockcroft-Gault formula as below:
eCrcr (mL/min/1.73 m2) = [ (140 - age) x mass (kilograms) x constant (1.23 if male, 1.04 if female) ] / serum creatinine (μmol/L)

 

       
Serum creatinine  
Creatinine units

 
Height (cm)
 
   

Calculated using the Counahan-Barratt formula as below:
eCrcr (mL/min/1.73 m2) = [ 0.43 x height (centimetres) ] / serum creatinine (μmol/L) x 0.0113 (correction factor for mg/dL)

 

       
Serum creatinine  
Creatinine units

 
Age (years)


 
Height (cm)
 
   

Calculated using the Schwartz formula as below:
eGFR (mL/min/1.73 m2) = [ 0.55 x height (centimetres) x K (constant) ] / serum creatinine (μmol/L) x 0.0113 (correction factor for mg/dL)

In first year of life, for pre-term babies K=0.33 and for full-term infants K=0.45. For infants and children between ages of 1 and 12 years, K=0.55. Adolescent boys, K=0.7.