1,000,000 people standing close together cover an area of 1,880 ft (573 m) by 1,343 ft (409 m). This space is about 1/5 the area of a square kilometer, which you can visualize by comparing it to a school bus, a semi truck, and a football field in the photo.
Nobody has photographed 1,000,000 people yet.
Together they take up
and weigh 82,673 US tons (75,000 tonnes)
covers about 1/5 the area of a square kilometer
Sizes and weights are typical for an adult or standard person; real ones vary. Standing close together, not packed in.