Mount Everest is on the border of China and Nepal.
Everest stands in the Mahalangur Himal sub-range of the Himalayas, with its summit marking part of the international boundary between Nepal and China's Tibet Autonomous Region. That makes the mountain a geographical feature shared by both countries, rather than a peak located wholly within one nation.
The mountain is known as Sagarmatha in Nepal and Qomolangma in Tibet. Its official height was jointly measured by Nepalese and Chinese authorities in 2020 as 8,848.86 metres above sea level, confirming it as Earth's highest mountain by that measure.
There are two principal climbing routes: the standard southeastern route approaches from Nepal, while another major route reaches the summit from the north through Tibet. Climbers face thin air, extreme weather, avalanches and the dangerous Khumbu Icefall. A common mistake is to describe Everest as being only in Nepal; Nepal contains the southern approach, but the summit lies on the China–Nepal border.