cholesterol ratio levels
1 Total Cholesterol/HDL: this ratio is determined when you divide total cholesterol into the HDL cholesterol in the body. 2  For instance, if an individual has total cholesterol of 240 mg/dl and HDL cholesterol of 30 mg/dl, then the Total/HDL ratio gives 8:1. 3  The ideal ratio for the body should be 3.5:1 or below.