Mars vs Pluto
Mars is about 2.8 times as wide as Pluto and Mars runs the hotter. Mars is the closer of the two to Earth, with an Earth-similarity index of 0.72.
| Mars | Pluto | |
|---|---|---|
| Type | Rocky world | Rocky world |
| Size (radius) | 0.53 R⊕ | 0.19 R⊕ |
| Surface gravity | 0.38× Earth | 0.06× Earth |
| Equilibrium temperature | -63°C (-82°F) | -229°C (-380°F) |
| Year (orbital period) | 1.9 years | 248 years |
| Distance from Earth | in our solar system | in our solar system |
| Earth-similarity index | 0.72 | 0.10 |
Common questions
Is Mars bigger than Pluto?
Mars is the larger of the two: Mars is 0.53 R⊕ across and Pluto is 0.19 R⊕, where Earth is 1 R⊕.
Which has stronger gravity, Mars or Pluto?
Mars pulls harder: surface gravity is 0.38× Earth on Mars and 0.06× Earth on Pluto.