Rheasilvia Mons on the asteroid Vesta is the highest mountain in the Solar System, 2.5 times higher than Mount Everest on Earth.

Video: Compare the size of the big mountains in the Solar System images 1
The mountains in the Solar System.

  • Mon Rumker Mount: 1.1km (Moon).
  • Mount Doom Mons: 1.45km (Titan - Saturn's Moon).
  • Caloris Montes: 3km (Mercury).
  • Mons Huygens Mountain: 5.5 km (Moon).
  • Skadi Mons Mountain: 6.4 km (Venus).
  • Mount Everest: 8.8km (Earth).
  • Mauna Kea Mountain: 10.2 km (Earth).
  • Arsia Mons Mountain: 11.7 km (Mars).
  • Mount Elysium Mons: 12.6km (Mars).
  • Mount Ascraeus Mons: 15km (Mars).
  • Mount Boosaules Montes: 17km (Io - Moon of Jupiter).
  • Equatorial Range: 20km (Lapetus - Saturn's Moon).
  • Rheasilvia Mons: 22km (Vesta - asteroid in the solar system).