Calculate eGFR using Excel. formula Male eGFR = 194 * Cr^-1.094 * Age^-0.287 Female eGFR = 194 * Cr^-1.094 * Age^-0.287 * 0.739 Excel formula =194*POWER(B3,-1.094)*POWER(A3,-0.287)*IF(C3=2,0.739,1) B column : Cre A Column: Age C Column: Sex (1=male, 2=female)