How tall is Olympus Mons on Mars compared to Earth's tallest mountain?

Olympus Mons is indeed significantly taller than Earth's highest mountain, Mount Everest. Olympus Mons stands approximately 13.6 miles (22 kilometers) high, making it the tallest volcano and mountain in the solar system. In contrast, Mount Everest reaches about 5.5 miles (8.8 kilometers) above sea level. The difference in elevation between the two is immense, as Olympus Mons is roughly two and a half times taller than Mount Everest. This dramatic height is due to Mars' lack of tectonic plate movement and its lower gravity, which allows such large volcanic structures to form without collapsing under their own weight. Therefore, stating that Olympus Mons is significantly taller accurately reflects the vast difference in elevation compared to Earth's tallest peak.