Cosmic Scale
Neptune vs Venus: size comparison
Neptune is about 4.07 times wider than Venus: 49,240 km across against 12,100 km.
Compare them in 3D, at true scale
| Neptune | Venus | |
|---|---|---|
| Diameter | 49,240 km | 12,100 km |
| Mass | 1.02 × 10²⁶ kg | 4.87 × 10²⁴ kg |
| Light crosses it in | 0.16 seconds | 0.04 seconds |
- Neptune has about 67.3 times the volume of Venus.
- Neptune is about 21.0 times more massive than Venus.
- Light takes 0.16 seconds to cross Neptune, and 0.04 seconds to cross Venus.
Neptune: Its winds are the fastest in the Solar System, over 2,000 km/h.
Venus: The hottest planet — its surface is hot enough to melt lead.