Weight on Other Planets

W = m × g_planet. Earth weight × planet gravity ratio.

Inputs

Result

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General calculation reads

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How to use this calculator

  • Enter your mass in kg.
  • Read weight on every planet (and Moon, Pluto).

About this calculator

Mass is constant; weight depends on local gravity. The Moon's gravity is 1/6 Earth — astronauts in 100kg spacesuits felt only 16kg. Jupiter's is 2.5× Earth — 70kg human would weigh 175kg equivalent (in pain). Pluto: 0.06× Earth — feel weightless. Surface gravity depends on planet mass and radius (g = GM/r²). Saturn's is barely more than Earth's despite being 95× more massive — vastly larger radius compensates.

Frequently asked

Why is Saturn's g close to Earth?+
Saturn is 95× more massive but ~9.5× larger radius. g ∝ M/r²; r² wins, so surface g is similar despite mass difference.
Mass vs. weight?+
Mass: kg, constant. Weight: N or lb-force, varies with gravity. Bathroom scale shows weight, but in everyday speech "weight" often means mass.
Moon includes Pluto?+
Strictly: Moon is satellite, Pluto is dwarf planet. But both have measured surface gravity worth comparing.
Why bother?+
Educational + space exploration. Mars rovers, lunar landers all designed for local gravity. ISS astronauts in microgravity (orbit, not "no gravity").
Black hole?+
No surface — gravity diverges as you approach. At the event horizon, escape velocity = c. Weight is undefined classically.

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