There are four types of buses — Type A, Type B, Type C and Type D — ranging from 6,000 pounds to more than 33,000 pounds. A conventional school bus is a Type C bus, which can weigh from 19,501 to 26,000 pounds, according to School Transportation News.
The weight of a school bus depends on what class or type of school bus it is. As outlined by School Transportation News, buses range from Type A, the smallest in size that carry fewer passengers, to Type D, the biggest bus, which carries the most passengers. All classes of school bus carry more than 10 passengers.