How many six feet people does it take to wrap round the earth?

To calculate how many six-foot-tall people it would take to wrap around the Earth, first note that the Earth's circumference is about 24,901 miles, which is approximately 131,477,280 feet. Dividing this by the height of a six-foot person (6 feet) gives about 21,912,880 people. Thus, it would take roughly 21.9 million six-foot-tall individuals standing side by side to encircle the Earth.