Jupiter
Jupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
How big is it?
139,800 km · mean diameter
Mean diameter · approximate
A little perspective
Jupiter vs Earth: diameter comparison
The mean diameter of Jupiter is about 11 times the mean diameter of Earth.
Jupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
Earth is the rocky planet on which we live and the third planet from the Sun.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
Measurements, assumptions & sources +
Jupiter
Mean diameter: 139,800 km; approximate.
Mean-radius spherical model for Jupiter; actual shape is not perfectly spherical. Gravity refers to a conventional atmospheric level, not solid ground.
NASA JPL — planetary physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
Earth
Mean diameter: 12,740 km; approximate.
Mean-radius spherical model for Earth; actual shape is not perfectly spherical.
NASA JPL — planetary physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 139,800 km
We compare the mean diameter of Jupiter. This is an estimate; check the notes for its rounding and uncertainty.
Mean-radius spherical model for Jupiter; actual shape is not perfectly spherical. Gravity refers to a conventional atmospheric level, not solid ground.
The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 139,800 km | Not recorded | approximate | |
| 69,910 km | Not recorded | approximate | |
| 439,300 km | Not recorded | derived | |
| 6.142 × 10¹⁰ km² | Not recorded | derived | |
| 1.431 × 10¹⁵ km³ | Not recorded | derived | |
| 317.8 M⊕ | Not recorded | approximate | |
| 24.79 m/s² | Not recorded | approximate | |
| 5.204 AU | Not recorded | rounded orbital anchor | |
| 47,050 km/h | Not recorded | rounded orbital anchor |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valuePlanets, moons and spaceSaturn116,500 kmMean diameterSaturn is a giant planet made mostly of hydrogen and helium, distinguished by its extensive ring system.
Nearest higher valuePlanets, moons and spaceProxima Centauri214,300 kmDiameterProxima Centauri is a red dwarf star and the closest known star to the Sun.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA JPL — planetary physical parametersMean radii and masses. Spherical area and volume here are derived from mean radius. This atlas rounds for scale comparison.
- NASA — Planet CompareConventional surface gravities; giant-planet values refer to an atmospheric reference level. Earth uses standard gravity, 9.80665 m/s².
- Defined examples — our methodology
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
SpaceMoon3,475 kmThe Moon is Earth’s natural satellite and the brightest large object in Earth’s night sky.
SpaceSun1,391,000 kmThe Sun is the star at the centre of the Solar System.SpaceSaturn116,500 kmSaturn is a giant planet made mostly of hydrogen and helium, distinguished by its extensive ring system.SpaceProxima Centauri214,300 kmProxima Centauri is a red dwarf star and the closest known star to the Sun.
SpaceEarth–Moon distance384,400 kmThe Earth–Moon distance is the average space between the centres of the Earth and the Moon.
SpaceUranus50,720 kmUranus is an ice giant planet with a blue-green atmosphere, orbiting the Sun on its side.
SpaceNeptune49,240 kmNeptune is an ice giant planet with a deep blue atmosphere, orbiting the Sun beyond Uranus.