Which measurement is bigger?
The recorded diameter of Jupiter is 1.186 times the recorded diameter of Saturn. The selected measurements are 142,984 km and 120,536 km, respectively.
| Object | Metric size | Imperial size | Dimension |
|---|---|---|---|
| Saturn | 120,536 km | 74,897.6 mi | diameter |
| Jupiter | 142,984 km | 88,846.1 mi | diameter |
What this comparison measures
Compare the equatorial widths of the two largest planets. Saturn’s rings are deliberately excluded from its diameter and its drawing to keep this a comparison of planet bodies.
Saturn: Equatorial diameter of the planet’s body; rings are excluded.
Jupiter: Equatorial diameter; mean diameter would be smaller.
The drawings use the same physical scale, but are simplified illustrations. They show a selected linear dimension rather than mass, surface area or volume. The space between objects makes the comparison readable and does not represent a real-world separation.
Inspect the sources
Both measurement sources are linked below the interactive board. The individual Saturn entry and Jupiter entry provide the selected conventions and related objects.
Change either selection to explore another pair. The full size comparison tool also lets you enter a personal height. To practise estimating rather than reading the answer first, try the daily five.