Glomerular filtration rate calculation formula

The formula for calculating glomerular filtration rate (GFR) generally requires checking the patient's blood creatinine concentration. The formula for calculating GFR varies between men and women. The formula for calculating GFR for men is: (140-age)* weight/72* blood creatinine concentration, where weight is in kilograms and blood creatinine concentration is in milligrams per deciliter. The glomerular filtration rate for women is calculated as (140-age)* body weight/85* serum creatinine concentration in the same units as the glomerular filtration rate for men.