How big is Saturn compared to Mars?
17.2×wider than Mars
Saturn is 17.2× wider than Mars — 116,460 km across against Mars’s 6,779 km. By volume, about 5,070 Marses would fit inside Saturn. Saturn has 890× Mars’s mass.
▶ See Saturn and Mars in 3D
Side by side
Diameter
Saturn 116,460 km · Mars 6,779 km
Width ratio
Saturn is 17.2× wider
Volume
5,070 Marses fit inside Saturn
Mass
Saturn is 890× Mars
Gravity (Saturn · Mars)
10.4 m/s² · 3.7 m/s²
Distance from Sun
9.58 AU · 1.52 AU
Saturn’s rings alone are wide enough to lay dozens of Marses across, yet in most places they are only about ten metres thick.
What sets them apart
A ringed gas giant against a small rocky desert. Saturn is about seventeen times wider than Mars and hundreds of times its mass. If Mars were a marble, Saturn would stand taller than a person.
Ratios are easy to nod along to and impossible to picture. In the interactive view, switch to True scale to see Saturn and Mars at their honest relative sizes.
Keep going
✓ Facts verified July 2026
Every figure on this page is a real, rounded value checked against primary sources. Found something out of date? See how we keep it accurate.