Results for “does mars have gravity” · retrieved September 22, 2026
Yes, Mars has gravity, which is approximately 38% as strong as the gravity on Earth.
Mars has gravity, but it is significantly weaker than Earth's due to the planet's smaller mass and size. The average surface gravitational acceleration on Mars is approximately 3.71 to 3.73 m/s², which is about 38% of the gravity experienced on Earth. Consequently, an object or person on Mars would weigh roughly 62% less than they would on Earth, even though their mass remains unchanged. Scientists calculate this force using Newton's law of universal gravitation, accounting for the planet's mass, density, and radius. Understanding this lower gravity is a critical factor for planning future human missions to the planet.
Answer details
Surface Gravity Strength
The average surface gravity on Mars is about 3.71 to 3.73 m/s², compared to Earth's approximately 9.8 m/s².
Impact on Weight
Because Martian gravity is weaker, a person would weigh about 62% less on Mars than they do on Earth, though their mass would remain the same.
Causes of Lower Gravity
The lower gravity is primarily due to Mars having only about 11% of Earth's mass and roughly half of its diameter.
Importance for Exploration
Precise measurements of the Martian gravity field are essential for the safe landing of spacecraft and are studied using data from orbiters and landers.
Sources 8
About this answerGravity of Mars
The gravity of Mars is a natural phenomenon, due to the law of gravity, or gravitation, by which all things with mass around the planet Mars are brought towards it. It is weaker than Earth's gravity due to the planet's smaller mass. The average gravitational acceleration on Mars is 3.721 m/s 2 (about 38% of the gravity of Earth), with a global variation range of ~0.059 m/s 2. [1]...To understand the gravity of Mars, its gravitational field streng
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Planet-Mars-Quick-Facts_Mars-nasa-gov.pdf
WEIGHT[effect of gravity on matter]...Weight is a measure of gravity’s effect on If you weighed 100 Ibs on Earth, you...mass. It varies based on factors like your would weigh only 36 Ibs on Mars!...mass, the planet's gravity, and the distancebetween you and the planet's center....GRAVITYOn Mars, you'd experience62.5% less gravitythan you're used to on Earth
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Mars Fact Sheet
| | Mars | Earth | Ratio (Mars/Earth) || --- | --- | --- | --- || Mass (10 24 kg) | 0.64169 | 5.9722 | 0.107 || Volume (10 10 km 3) | 16.312 | 108.321 | 0.151 || Equatorial radius (km) | 3396.2 | 6378.1 | 0.532 || Polar radius (km) | 3376.2 | 6356.8 | 0.531 || Volumetric mean radius (km) | 3389.5 | 6371.0 | 0.532 || Core radius (km) | 1830 | 3485 | 0.525 || Ellipticity (Flattening) | 0.00589 | 0.00335 | 1.76 || Mean density (kg/m 3) | 3934 | 5
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How Strong is the Gravity on Mars?
At the same time, our two planets are really quite different, and in a number of very important ways. One of these is the fact that gravity on Mars is just a fraction of what it is here on Earth. Understanding the effect this will likely have on human beings is of extreme importance when it comes time to send crewed missions to Mars, not to mention potential colonists....And while the length of a Martian day is roughly the same as it is here on E
December 16, 2016
Mars: Facts - NASA Science
Mars has two small moons, Phobos and Deimos, that may be captured asteroids. They're potato-shaped because they have too little mass for gravity to make them spherical....When the solar system settled into its current layout about 4.5 billion years ago, Mars formed when gravity pulled swirling gas and dust in to become the fourth planet from the Sun. Mars is about half the size of Earth, and like its fellow terrestrial planets, it has a central c
November 10, 2017
Earth vs. Mars
Mars is not just smaller than Earth, it is also less dense. Though Mars is 15% of Earth’s volume, it is only 11% of Earth’s mass. This means that the pull of gravity on the surface of Mars is only 38% as strong as the pull of gravity on Earth’s surface....If a person were standing on the surface of Mars, their mass would be exactly the same as on Earth, but they wouldn’t weigh the same. This is because weight is the measurement of the force of gr
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How strong is the gravity on Mars?
At the same time, our two planets are really quite different, and in a number of very important ways. One of these is the fact that gravity on Mars is just a fraction of what it is here on Earth. Understanding the effect this will likely have on human beings is of extreme importance when it comes time to send crewed missions to Mars, not to mention potential colonists....between Mars and Earth are all crucial for the existence of life as we know
December 19, 2016
Mars Characteristics - Atmosphere, Surface, Gravity & More
Mass & Gravity...Mars is an Earth-like planet in many ways, but it does vary in size and gravitational pull. From spacecraft and telescope observations, planetary scientists know that it smaller and less massive than Earth. Its mass is 0.107 Earth masses and its gravity is about 62 percent less than Earth’s gravitational tug. That means you would weigh less on Mars than you do on Earth.
October 13, 2014
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