Charts of cholesterol levels are available from National Heart, Lung and Blood Institute of the National Institutes of Health. The site offers two charts, one covering total cholesterol levels and another listing LDL cholesterol levels.
The cholesterol level charts available from the NIH list ranges of total and LDL cholesterol levels, paired with a category describing the level on a range from optimal to very high. The site provides further information on the causes of high levels of cholesterol along with risk factors, such as age, gender and genetics. An additional chart lists the risk levels for developing heart disease from high levels of cholesterol.