Pluto radius (R♇ or RP) is the unit of distance equal to the radius of Pluto. 1 R♇ = 1186±2 km. One Pluto radius can be converted to: * 1.02 Eris radius * 0.682 Lunar radius * 0.486 Mercury radius * 0.350 Mars radius * 0.196 Venus radius * 0.186 Earth radius (R⊕)