What is the world's tallest mountain from base to peak?
Mauna Kea in Hawaii is the world's tallest mountain from base to peak! Its base is on the sea floor and it rises 33,480 feet (10,314 meters) in total, reaching 13,796 feet (4205 m) above sea level.While Mt. Everest is the world's tallest mountain above sea level, Mauna Kea is still quite spectacular.
