This chart ranks the largest objects in the Solar System by diameter, in kilometres, from the Sun through the planets down to the biggest moons. The Sun utterly dominates, dwarfing even the giant planet Jupiter.

About: Largest Objects in the Solar System by Diameter

Overview of the data behind this chart

AI Insight

The Sun, about 1,391,000 km across, dominates the Solar System completely, roughly ten times the diameter of Jupiter (139,820 km) and over a hundred times that of Earth (12,742 km). Among the planets, the gas giants Jupiter and Saturn (116,460 km) tower over the ice giants Uranus and Neptune, which in turn dwarf the rocky inner planets. Strikingly, the two largest moons, Ganymede (5,268 km) and Titan (5,150 km), are larger than the planet Mercury by diameter, though far less massive. The list spans an enormous range, from the Sun down to moons a few thousand kilometres wide, illustrating how a single star holds more than 99% of the Solar System's mass while everything else, planets and moons alike, orbits as comparatively tiny companions.

Data source: NASA Planetary Fact Sheet

Key Findings

Auto-computed highlights from this dataset

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Sun leads with 1,391,000 in All Time.

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Average value in All Time: 178,929 · median: 30,993.

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Gap in All Time: Sun is 270.1× larger than Titan.

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Additional Data

Largest Objects in the Solar System by Diameter

Data Insights Below

Data Insights

Numbers, trends & sources behind this chart

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Data Points

10 categories · 1 year

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Top Value

1,391,000

Sun

Diameter (km) · All Time

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Metrics

Diameter (km)

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Period

All Time

Single year snapshot

Category Rankings

Diameter (km) · All Time

#	Category	All Time
🥇	Sun	1,391,000
🥈	Jupiter	139,820
🥉	Saturn	116,460
4	Uranus	50,724
5	Neptune	49,244
6	Earth	12,742
7	Venus	12,104
8	Mars	6,779
9	Ganymede	5,268
10	Titan	5,150

Statistical Summary — Diameter (km) · All Time

1,391,000

Maximum

5,150

Minimum

178,929

Average

30,993

Median

What This Data Shows

Auto-generated trend summaries per category

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Sun

Recorded 1,391,000 Diameter (km) in All Time.

Source

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Jupiter

Recorded 139,820 Diameter (km) in All Time.

Source

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Saturn

Recorded 116,460 Diameter (km) in All Time.

Source

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Uranus

Recorded 50,724 Diameter (km) in All Time.

Source

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Neptune

Recorded 49,244 Diameter (km) in All Time.

Source

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Earth

Recorded 12,742 Diameter (km) in All Time.

Source

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Venus

Recorded 12,104 Diameter (km) in All Time.

Source

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Mars

Recorded 6,779 Diameter (km) in All Time.

Source

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Ganymede

Recorded 5,268 Diameter (km) in All Time.

Source

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Titan

Recorded 5,150 Diameter (km) in All Time.

Source

Full Data Table

10 records across 1 year

10 sourced

Category	Metric	All Time
Sun	Diameter (km)	1,391,000
Jupiter	Diameter (km)	139,820
Saturn	Diameter (km)	116,460
Uranus	Diameter (km)	50,724
Neptune	Diameter (km)	49,244
Earth	Diameter (km)	12,742
Venus	Diameter (km)	12,104
Mars	Diameter (km)	6,779
Ganymede	Diameter (km)	5,268
Titan	Diameter (km)	5,150