# Your Weight and Age on Other Planets

Updated February 21, 2017 | Factmonster Staff
Source: National Aeronautics and Space Administration (NASA)

To find what you would weigh in the gravitational field of another planet, multiply your weight on Earth times the gravitation factor listed in the table below.

Example: I weigh 90 pounds on Earth. On Mercury, I would weigh:

90 pounds X 0.38 = 34.2 pounds

On Neptune, I would weigh:

90 pounds X 1.12 = 100.8 pounds

To find your age according to the length of another planet's year, divide your age in Earth years by the period of revolution (in Earth years) of the planet listed in the table below.

Example: I am 13 Earth years old. In Mercury's orbit, I would be:

13 years ÷ 0.241 = 54 years old

In Neptune's orbit, I would be:

13 years ÷ 164.8= 0.079 years old

 Celestial Object Gravitational Pull (Compared to Earth) Period of Revolution (Compared to Earth) Mercury 0.38 0.241 Earth years Venus 0.91 0.615 Earth years Earth 1.0 1.0 Earth year Mars 0.38 1.88 Earth years Jupiter 2.36 11.9 Earth years Saturn 0.91 29.5 Earth years Uranus 0.89 84.0 Earth years Neptune 1.12 164.8 Earth years Pluto 0.06 (?) 248.5 Earth years
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