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We calculate weight by multiplying mass by the gravity on the surface of the planet.
So, if you know your weight on Earth and the surface gravity on Earth, you can calculate your mass. You can then calculate your weight on any other planet by using the surface gravity of that planet in the same equation.
You can work it out for yourself using the surface gravity values in the following planetary data sheet. You can then check your answers using the weight calculator.
|Facts and Figures||Mercury||Venus||Earth||Mars||Jupiter||Saturn||Uranus||Neptune|
|a 1 AU (or Astronomical Unit) = 149,600,000 km and is the mean distance from the Earth to the Sun
b 1 Earth Mass = 5,980,000,000,000,000,000,000,000 kg
c 1 g = 9.8 m/s2
|Orbital Distance (AU)a||0.38||0.72||1.0||1.52||5.2||9.45||19.2||30.06|
|Mass (Earth Masses)b||0.055||0.82||1.0||0.11||318||95.2||14.5||17.1|
|Surface Gravity (g)c||0.38||0.91||1.0||0.38||2.34||0.93||0.92||1.12|
|Surface Temperature||-200 to|
|460 °C||-80 to|
|-110 °C||-140 °C||-190 °C||-200 °C|
|Number of moons||0||0||1||2||63||60||27||13|