Height21,900 m
31,924Tennis rackets
4,380SUV lengths
33,692Baguettes
About 2.5 times the height of Everest
Photo from Wikimedia Commons
Olympus Mons
The largest volcano in the solar system/Volcanoes
Olympus Mons on Mars is so large that its base would cover most of France. At nearly 22 kilometers high, it dwarfs anything on Earth -- you could stack almost three Everests and still not reach the top. The volcano is a shield type built by thousands of fluid lava flows, and its slope is so gentle that standing on the edge, you couldn't see the summit due to the curvature of Mars.
Measurements
Base diameter600,000 m
632 quadrillionthsGlobular cluster widths
4 millionHot dogs
2 millionAnt hill heights
Approximately 600 km across
Caldera area7.2 billion m²
45 billionPizza boxes
13,091Golf courses
4.6 millionHockey rinks
The summit caldera is about 80 km by 60 km
Volume2.7 quadrillion m³
1.1 trillionOlympic swimming pools
54 sextillionEyedrops
About 100 times the volume of Mauna Loa
Cliff height at edge8,000 m
1,455King cobras
7,498Hurdle heights
11.4 billionRed light wavelengths
Sheer escarpment around parts of the base
Base area283 billion m²
16.6 trillionHuman palms
1.9 quadrillionHuman thumbnails
Roughly the area of Italy