Neptune size comparison: how tall is the Neptune?
Neptune: 49,528 km · 30,775 mi tall · 1.02 × 10²⁶ kg
Diameter 49,528 km · 4,515 million km from the Sun · gravity 11 m/s² (1.12 g)
Neptune is 49,528 km · 30,775 mi tall (1.02 × 10²⁶ kg). That is about 28,963,743× the height of an average man (171 cm). Compare it side by side with people, animals, buildings and more on the board above — drag, zoom, switch cm / ft, or export an image.
Neptune in other units
| Unit | Size |
|---|---|
| Kilometres | 49,528 km |
| Miles | 30,775.3 mi |
| Metres | 49,528,000 m |
| Feet | 162,493,438 ft |
How big is that?
Neptune measures 49,528 km across. Earth is 12,742 km wide, so Neptune is about 3.9 times the width of Earth.
What is about the same size as Neptune?
| Compared with | Size | Difference |
|---|---|---|
| Uranus (Sun & planets) | 51,118 km · 31,763 mi | 1,590 km larger (3.2%) |