Solar system by size
| Body | Mean Radius (km) | Mean Radius (vs. Earth) | Volume (billion km3) | Volume (vs. Earth) |
|---|---|---|---|---|
| Sun | 696,000 | 109.25 | 1412 million | 1,303,781 |
| Jupiter | 69,911 | 10.97 | 1,431,280 | 1321 |
| Saturn | 58,232 | 9.14 | 827,130 | 764 |
| Uranus | 25,362 | 3.98 | 68,330 | 63.1 |
| Neptune | 24,624 | 3.87 | 62,540 | 57.7 |
| Earth | 6371.0 | 1 | 1083.21 | 1 |
| Venus | 6051.8 | 95.0% | 928.43 | 85.7% |
| Mars | 3390.0 | 53.2% | 163.18 | 15.1% |
| Ganymede* | 2631.2 | 41.3% | 76.3 | 7.04% |
| Titan* | 2575 | 40.4% | 71.5 | 6.60% |
| Mercury | 2439.7 | 38.3% | 60.83 | 5.62% |
| Callisto* | 2410.3 | 37.8% | 58.7 | 5.41% |
| Moon | 1737.1 | 27.3% | 21.958 | 2.03% |
| Pluto | 1195 | 18.8% | 7.15 | 0.660% |
| Ceres** | 950 | 14.9% | 3.60 | 0.332% |
| Titania** | 788.9 | 12.4% | 2.06 | 0.190% |
| Rhea** | 764 | 12.0% | 1.87 | 0.172% |
| Oberon* | 761.4 | 12.0% | 1.85 | 0.171% |
| Sedna*** | 750 | 11.8% | 1.8 | 0.163% |
| Iapetus* | 718 | 11.3% | 1.55 | 0.143% |
| Quaoar* | 600 | 9.4% | 0.9 | 0.084% |
| (90482) 2004 DW*** | 600 | 9.4% | 0.9 | 0.084% |
| Charon* | 593 | 9.3% | 0.87 | 0.081% |
| Umbriel* | 584.7 | 9.2% | 0.84 | 0.077% |
| Ariel** | 578.9 | 9.1% | 0.81 | 0.075% |
| Dione* | 560 | 8.8% | 0.74 | 0.068% |
| Vesta* | 530 | 8.3% | 0.62 | 0.058% |
| Varuna* | 530 | 8.3% | 0.62 | 0.058% |
| Tethys** | 530 | 8.3% | 0.62 | 0.058% |
| Ixion* | 527 | 8.3% | 0.61 | 0.057% |
| Pallas** | 524 | 8.2% | 0.60 | 0.056% |
- * Using equatorial radius and assuming body is spherical
- ** Using three radii and assuming body is spheroid
- *** Radius is known only very approximately