The price of hepatitis B vaccine for adults cannot be generalized and varies slightly depending on the level of the city and the size of the hospital. Usually, in provincial capitals and tertiary hospitals, the price of hepatitis B vaccine for adults is relatively expensive, ranging from 198.5 to 218.2 yuan for three injections of hepatitis B vaccine. In second-tier cities, second-class A hospitals or third-class B hospitals, the price of hepatitis B vaccine for adults usually ranges from 156.9 to 178.6 yuan. The price of adult hepatitis B vaccine is relatively cheapest in third-tier cities or tertiary care hospitals, usually ranging from RMB 128.5-137.6.