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Mars / Earth Size Comparison

This composite image shows the relative sizes of Earth and Mars.

Mars is:

• 0.532 times the diameter of Earth.
• 1.95 times the diameter of the Moon.
• 0.56 times the diameter of the planet Venus.
• 1.29 times the diameter of Ganymede (a satellite of Jupiter).
• 32.1 times the diameter of Amalthea (a satellite of Jupiter).
• .059 times the diameter of the planet Saturn.
• 6.45 times the diameter of Tethys (a satellite of Saturn).
• 17.2 times the diameter of Mimas (a satellite of Saturn).
• 0.135 times the diameter of the planet Uranus.
• 4.21 times the diameter of Titania (a satellite of Uranus).