Planets by Surface Gravity

About This Dataset

This chart compares the surface gravity of the eight planets in the Solar System, measured in meters per second squared. Jupiter's gravity is the strongest at 23.1 m/s², while Mercury and Mars share the weakest at 3.7 m/s² - about a third of Earth's 9.8 m/s².

Analysis

Gravity across the Solar System is surprisingly forgiving: despite Jupiter having 318 times Earth's mass, its cloud-top gravity is only 2.4 times stronger, because its enormous radius pushes the surface far from the center of mass. Saturn offers the oddest case - a planet 95 times Earth's mass where you would weigh slightly less than at home (9.0 vs 9.8 m/s²). Mercury and Mars tie at 3.7 m/s², meaning an astronaut could jump nearly three times higher there than on Earth. That low Martian gravity is a double-edged sword for colonization: easier landings and launches, but unknown long-term effects on human bone and muscle, which evolved for a 9.8 m/s² world.

Source: NASA Planetary Fact Sheet

Key Findings

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Jupiter leads in Surface Gravity (m/s²) with 23.10.

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Average Surface Gravity (m/s²): 9.74 · median: 8.95.

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Gap: Jupiter is 6.2× larger than Mars.