Weight Calculator · Practical guide
How Much Would I Weigh on Mars?
Martian gravity is about 37.6% of Earth's — multiply your weight by 0.376 to find your Mars weight.
At a glance
About 38% of Your Earth Weight
Mars has a surface gravity of 3.72 m/s², about 37.6% of Earth's. Multiply your Earth weight by 0.376: a 150 lb person weighs 56.4 lb on Mars, and a 70 kg person weighs about 26.3 kg on a Martian scale. You would feel lighter but nothing like the Moon's one-sixth bounce.
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Enter your own values, then compare the result with the examples below.
Results
Mars Weight for Common Earth Weights
| Earth weight | Mars weight |
|---|---|
| 100 lb (45.4 kg) | 37.6 lb (17.1 kg) |
| 125 lb (56.7 kg) | 47.0 lb (21.3 kg) |
| 150 lb (68.0 kg) | 56.4 lb (25.6 kg) |
| 175 lb (79.4 kg) | 65.8 lb (29.9 kg) |
| 200 lb (90.7 kg) | 75.2 lb (34.1 kg) |
Why Mars Is Lighter Than Earth but Heavier Than the Moon
Mars has about 11% of Earth's mass and roughly half its radius, which yields 38% of Earth's surface gravity. The Moon, far smaller, manages only 16.6%. Interestingly, Mercury — similar in size to the Moon but much denser — has nearly the same gravity ratio as Mars (0.378), which is why the calculator shows almost identical numbers for both.
Mars vs. Moon: Same Person, Different Feel
A 180 lb person weighs 67.7 lb on Mars but only 29.9 lb on the Moon. On Mars you could jump about 2.6 times higher than on Earth and lift objects that would otherwise strain your back — useful for future explorers hauling equipment. NASA studies of this reduced gravity matter because muscles and bones weaken without Earth's load, which is a real concern for multi-year Mars missions.
Frequently Asked Questions
How much would a 150 lb person weigh on Mars?
Multiply 150 by 0.376: about 56.4 lb. In kilograms, a 68 kg person would register about 25.6 kg on a Martian scale.
Is gravity on Mars stronger than on the Moon?
Yes, more than twice as strong. Mars pulls at 3.72 m/s² versus the Moon's 1.62 m/s², so you would weigh 37.6% of Earth weight on Mars versus 16.6% on the Moon.
Why do Mars and Mercury show almost the same weight?
Mercury is much smaller than Mars but far denser, and the two effects nearly cancel. Their gravity ratios are 0.378 and 0.376, so your weight on either is about 38% of Earth.
Would I be able to jump higher on Mars?
Yes — roughly 2.6 times higher than on Earth with the same leg strength, since gravity is about 38% as strong. A spacesuit's bulk would limit that in practice.