Mount Everest is indeed the world's highest mountain peak above sea level, with an official elevation of 8,848.86 meters (29,031.7 ft). Located in the Himalayas on the border between Nepal and Tibet (China), it has held this record since its first survey. While Mauna Kea in Hawaii is taller from base to summit, Everest remains the highest above sea level, which is the standard measurement for mountain height.