Jupiter vs Earth
11.21× wider
Jupiter's equatorial diameter is about 11.21 Earth diameters. Its mean-radius-derived volume is about 1,321 Earth volumes; using the equatorial diameter cubed would overestimate this flattened giant's volume.
Solar system · Question
Interactive planet size comparison
Compare any two planets on the same diameter scale. Start with Earth vs Jupiter, Mars, or Venus, then see how a modest diameter difference becomes a much larger volume difference.
Visual model
Pick two planets to compare.
vs
Preparing the comparison controls. The Earth–Jupiter baseline and factual notes below are already available.
Both circles always share one linear diameter scale. The largest selected planet fills the available ruler height; the smaller one stays proportional. This scale changes when you choose a different pair.
Earth
Jupiter
Reference: Jupiter 142,984 km → 220 px; Earth 12,756 km → 19.6 px. Same scale for both circles.
11.21×Jupiter's equatorial diameter vs Earth's
1321×Jupiter's volume vs Earth's
1321Earth-equivalent volumes in Jupiter (not literal sphere packing)
Quick answers
Popular planet size comparisons.
These common comparisons are useful anchors before trying your own pair above.
Mars vs Earth
0.53× Earth's diameter
Mars is just over half as wide as Earth, but only about 15% of Earth's volume.
Venus vs Earth
0.95× Earth's diameter
Venus is genuinely close to Earth in size even though its atmosphere and surface conditions are radically different.
What's simplified
Two things this comparison leaves out.
01
Mass isn't shown
Volume ratio is not the same as mass ratio — Saturn is less dense than water, so it has less mass than its volume alone would suggest.
02
Circles, not spheres
The circles compare NASA equatorial diameters. Volume ratios use NASA mean-radius values, so flattened gas giants are not treated as perfect spheres based on equatorial width alone.
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Distance scale ↗
Real distances vs compressed diagram.
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