Europa (Moon of Jupiter)
3,121.6 km (1,940 mi)
Diameter (twice the radius)
An icy moon with an ocean hidden under its cracked crust. Diameter: 3,122 km, a bit smaller than our Moon.
Published
How big is that?
3,121.6 km is 353 times Mount Everest and 24% of Earth.
Europa is the 17th largest of the 39 Cosmic Scale objects, and the 17th largest of the 109 objects across all three SizeItUp games.
Size comparison
To scale, smallest to largest: Europa in orange beside the Cosmic Scale objects nearest in size, in teal.
| Object | Size | vs Europa |
|---|---|---|
| Pluto (Dwarf planet)The dwarf planet at the edge of the classical Solar System, with a heart-shaped plain. | 2,376 km across | 76% of the size |
| Triton (Moon of Neptune)Neptune's largest moon, which orbits backwards. | 2,706.8 km across | 87% of the size |
| Europa (Moon of Jupiter) | 3,121.6 km across | – |
| The MoonEarth's only natural satellite. | 3,475 km across | 1.1× bigger |
| Io (Moon of Jupiter)The most volcanic world in the Solar System. | 3,643 km across | 1.2× bigger |
In other units
| Metres | 3,121,600 |
|---|---|
| Kilometres | 3,121.6 |
| Feet | 10,240,000 |
| Miles | 1,940 |
How it's measured
Diameter (twice the radius). NASA Jovian Satellite Fact Sheet: radius 1,560.8 km.
Fact sheets list a radius; the diameter here is twice that.
Sources
- nssdc.gsfc.nasa.gov: Europa (II): radius 1560.8 km.
Checked against the source on .
Could you have guessed it by eye?
Europa is one of the objects in Cosmic Scale, a daily size comparison game: you stretch a shape to the size you think is right beside one you know.