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Conversionsscience

Weight on Other Planets Calculator

Your weight on other worlds. Weight is a force that changes with gravity while mass does not, which is the distinction the question is really about.

Also called: weight on mars, planet gravity calculator.

In
Weight there
26.55

26.55 kilograms on Mars, where surface gravity is 3.72 m/s² against 9.81 on Earth. Your mass has not changed: a kilogram of you is still a kilogram of you. Only the force a scale measures has changed.

Surface gravity
3.72
Gravity relative to Earth
0.38
Earth surface gravity
9.81
How high you could jump
131.8
Body
Mars
Unit
kilograms
On mass against weight
a kilogram of you is still a kilogram of you. Only the force a scale measures has changed.
How this is calculated
Method and background

How this is calculated

Weight is mass times local gravitational acceleration, so it scales directly with surface gravity. Mass is unchanged: you contain the same matter on Mars as on Earth. Kilograms are strictly a unit of mass, so the honest phrasing is that a scale calibrated on Earth would read differently there. The jump height figure follows from the same energy giving more height in weaker gravity, which is why the Apollo astronauts moved as they did.

weight is a force and changes with gravity; mass is a quantity of matter and does not
m
Mass
g
Surface gravity

Worked examples

Each of these is asserted on every build. If a change to the engine ever moved one of these answers, the build would fail before the page could print it.

70 kg on Mars

Your weight on Earth
70
In
Kilograms
Body
Mars

Weight there26.55

70 x 3.72 / 9.80665

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the Moon is about one sixth

Your weight on Earth
70
In
Kilograms
Body
The Moon

Weight there11.56

boundary: the familiar figure

Open this example

Method and limits

What it assumes

  • Surface gravity at the equator, and for gas giants the level where pressure equals one Earth atmosphere.

What it deliberately does not model

  • The gas giants have no surface, so those figures are a convention.
  • Standing on the Sun is not survivable by several orders of magnitude and the figure is illustrative.

Formula version 1.0.0 · definition 1.0.0 · United States · Report a problem with this calculator

Frequently asked questions

Does my mass change on the Moon?
No. Mass is the amount of matter and is the same everywhere. Weight is the force gravity exerts on that mass, and only weight changes.
Why is Jupiter only about 2.5 times Earth gravity?
Because gravity falls with the square of distance from the centre, and Jupiter is very large. Its enormous mass is partly offset by how far the surface is from the middle.