| JupiterDiameter, average | 139,822 km86,881 mi | NASA/JPL Solar System Dynamics |
| SaturnDiameter, without the rings | 116,464 km72,367 mi | NASA/JPL Solar System Dynamics |
| UranusDiameter, average | 50,724 km31,518 mi | NASA/JPL Solar System Dynamics |
| NeptuneDiameter, average | 49,244 km30,599 mi | NASA/JPL Solar System Dynamics |
| EarthDiameter, average | 12,742 km7,918 mi | NASA/JPL · IAU 2015 report |
| VenusDiameter, average | 12,103.6 km7,521 mi | NASA/JPL Solar System Dynamics |
| MarsDiameter, average | 6,779 km4,212 mi | NASA/JPL · IAU 2015 report |
| GanymedeDiameter, average | 5,262.4 km3,270 mi | NASA/JPL Solar System Dynamics |
| TitanDiameter, average | 5,149.52 km3,200 mi | NASA/JPL Solar System Dynamics |
| MercuryDiameter, average | 4,878.8 km3,032 mi | NASA/JPL Solar System Dynamics |
| CallistoDiameter, average | 4,820.6 km2,995 mi | NASA/JPL Solar System Dynamics |
| IoDiameter, average | 3,642.98 km2,264 mi | NASA/JPL Solar System Dynamics |
| The MoonDiameter, average | 3,474.8 km2,159 mi | NASA/JPL Solar System Dynamics |
| EuropaDiameter, average | 3,121.6 km1,940 mi | NASA/JPL Solar System Dynamics |
| TritonDiameter, average | 2,705.2 km1,681 mi | NASA/JPL Solar System Dynamics |
| PlutoDiameter, average | 2,376.6 km1,477 mi | NASA/JPL Solar System Dynamics |
| CharonDiameter, average | 1,212 km753 mi | NASA/JPL Solar System Dynamics |
| CeresDiameter, average | 939.4 km584 mi | NASA/JPL Solar System Dynamics |