I am using this very long formula =if(and(D9<460),5,if(and(D9<=479,D9>460),4,if(and(D9=480),3,if(and(D9<=499,D9>480),2,if(and(D9>499),1))))) and I would like add an ISERROR to it. Can this be done? I have tried using =if(iserror(and(D9<460),5,if(and(D9<=479,D9>460),4,if(and(D9=480),3,if(and(D9<=499,D9>480),2,if(and(D9>499),1)),"-",and(D9<460),5,if(and(D9<=479,D9>460),4,if(and(D9=480),3,if(and(D9<=499,D9>480),2,if(and(D9>499),1)) it is returning a message that I have "entered too many arguments for this function". I am new to excel and I am teaching myself to use it. Please help me.