It takes 992,000 ping-pong balls to fill the space of one school bus. If you were to dump them all in one spot, they would form a heap 30.3 ft (9.25 m) wide and 8.07 ft (2.46 m) tall.

To fill a school bus
about 992,000 ping-pong balls
55,000 liters of space
about 2 times the size of a 20-foot shipping container
Sizes and weights are typical for an adult or standard ping-pong ball; real ones vary.