| Mass (kg) | 6.42 x 1023 |
| Diameter (km) | 6787 |
| Mean density (kg/m3) | 3940 |
| Escape velocity (m/s) | 5000 |
| Average distance from Sun | 1.524 AU (227,936,640 km) |
| Rotation period (length of day in Earth days) | 1.026 |
| Revolution period (length of year in Earth days) | 686.98 |
| Obliquity (tilt of axis degrees) | 25 |
| Orbit inclination (degrees) | 1.85 |
| Orbit eccentricity (deviation from circular) | 0.093 |
| Maximum surface temperature (K) | 310 |
| Minimum surface temperature (K) | 150 |
| Visual geometric albedo (reflectivity) | 0.15 |
| Highest point on surface | Olympus Mons (about 24 km above surrounding lava plains) |
| Atmospheric components | 95% carbon dioxide, 3% nitrogen, 1.6% argon |
| Surface materials | basaltic rock and altered materials |
