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Most of the time, the International Space Station (ISS) is orbiting the Earth at an altitude of approximately 220 miles (354 km), which places it in low Earth orbit (LEO). This distance can change, however, and has varied from 205 miles (330 km) to a planned maximum of 248 miles (400 km).
The ISS orbits at approximately 220 miles (350 km) above the Earth and it travels at an average speed of 17,227 miles (27,724 km) per hour. The ISS makes multiple orbits around the Earth every day. Photo of the International Space Station taken from the space shuttle Endeavour on May 30, 2011. Image via NASA.