Mount Everest is the highest mountain on Earth above sea level, measured at 8,848.86 metres in 2020.
Everest stands in the Himalayas on the border between Nepal and the Tibet Autonomous Region of China. Nepal calls it Sagarmatha, while the Tibetan name is Chomolungma. The English name honors George Everest, a former Surveyor General of India.
Nepal and China jointly announced the 8,848.86-metre elevation in December 2020 after coordinated surveys. The figure includes the mountain's snow and ice cap, which can change over time; earlier official measurements differed slightly.
Everest is not Earth's tallest mountain when measured from base to summit: Mauna Kea in Hawaii is taller by that measure because much of it lies underwater. Chimborazo in Ecuador is also farther from Earth's centre because of the planet's equatorial bulge.