What is mount everests height in metres?

Question

What is mount everests height in metres?

Answer 1

The height of its summit above sea level is 8,848 metres

Answer 2

There seems to be some disagreement between Everest News and National Geographic about the height.  According to Everest News, it is 8848 meters (29,029 feet).

*Note the National Geographic Society has determined the height as being 29,035 feet (8850 meters). However, this "new" height is not yet determined as official to our knowledge. As the norm with Everest, nothing is simple.

Scientists supported by the National Geographic and Boston's Museum of Science were able to operate Global Positioning System (GPS) satellite equipment on the very top of Mount Everest last May and have determined the precise height of the world's tallest mountain: seven feet higher than the current official elevation.

The revised elevation - 29,035 feet (8850 meters), two meters or seven feet higher than the previously accepted figure - was announced Nov. 11 by Bradford Washburn, renowned mountain photographer/explorer and honorary director of Boston's Museum of Science, at the opening reception of the 87th annual meeting of the American Alpine Club.

The event, held at National Geographic Society headquarters in Washington, was attended by a large number of America's top Everest climbers and experts, and included a presentation by Eric Simonson and Conrad Anker of last spring's Mallory & Irvine Research Expedition.

"National Geographic is accepting this new elevation for Everest because it is clearly the most authoritative and thoroughly executed measurement of the highest point on the Earth's surface," said Allen Carroll, the Society's chief cartographer. "As always, National Geographic goes with the best sources."