It would take 440 people to fill the space of one school bus. Standing close together, this group would cover an area of 39.4 ft (12 m) by 28.2 ft (8.59 m), which is about the area of a small apartment.

To fill a school bus
about 440 people
55,000 liters of space
covers about the area of a small apartment
Sizes and weights are typical for an adult or standard person; real ones vary. Standing close together, not packed in.