Ltpgtltstronggtget your bmi taped with the 66fit anatomical calculatorltstronggtltpgtr ltpgtthese days we all know how important it is to have a healthy bmi body mass index but just how many of us know how to calculate it for ourselvesltpgtr ltpgtwith the 66fit anatomical tape measure it couldnamprsquot be easier simply rotate the inner dial height measurement and align your height measurement with your weight measurement as it appears on the outer scale