Mount Everest (also known in Nepal as Sagarmatha and in Tibet as Chomolungma) is the Earth‘s highest mountain. Its peak is 8,848 metres (29,029 ft) above sea level and is the 5th furthest point from the centre of the Earth. Its massif includes neighboring peaks Lhotse, 8,516 m (27,940 ft); Nuptse, 7,855 m (25,771 ft) and Changtse, 7,580 m (24,870 ft).
In 1856, the Great Trigonometric Survey of India established the first published height of Everest, then known as Peak XV, at 29,002 ft (8,840 m). The current official height of 8,848 m (29,029 ft) as recognized by Nepal and China was established by a 1955 Indian survey and subsequently confirmed by a Chinese survey in 1975.