Earth
Measured from its base deep under the Pacific, Hawaii's Mauna Kea rises more than 33,500 feet. By that measure, NOAA says, it is taller than Mount Everest.
ILLUSTRATION · AIMeasured from base to peak, Mauna Kea on the Big Island of Hawaii is the tallest mountain on Earth: more than 33,500 feet (10,210 meters), NOAA says.
Mount Everest has the highest summit above sea level, but Mauna Kea starts deep beneath the Pacific Ocean. Measured from its base, it rises more than 10,210 meters.
A third answer
NOAA points out that the summit farthest from Earth's center is Chimborazo in Ecuador, because Earth bulges at the equator.
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