What does the Weight on Planets Calculator actually compute?

It multiplies your mass by the surface gravity of the Sun, each planet, and the Moon and Pluto, then reports the result as a kilogram-force or pound-force figure — what a scale on that body would show.

How much would I weigh on the Moon according to this calculator?

The Weight on Planets Calculator uses lunar gravity of about 1.62 m/s², so your Moon weight comes out to roughly one sixth of your Earth weight — 70 kg on Earth is about 11.3 kgf on the Moon.

Does the Weight Calculator use my mass or my weight as input?

Both work the same way. On Earth, weight in kilogram-force is numerically almost identical to mass in kilograms, so you can type either your mass or your everyday Earth weight.

Can I switch the Weight Calculator to pounds?

Yes. Toggle Metric / US and the input and every row of the results table switch between kilograms and pounds automatically.

Where do the planet gravity figures come from?

The Weight Calculator uses widely published average surface gravity values for the Sun and each planet, plus the Moon and Pluto — they are estimates for comparison and learning, not precise scientific measurements.

Is my mass or weight sent anywhere when I use this calculator?

No. The Weight on Planets Calculator runs entirely in your browser. The number you type never leaves your device and is not uploaded to ArrayKit.

Weight on Planets Calculator Online

Find your weight on the Moon, Mars, and every other planet from your mass, in metric or US units. Your figures stay on your device.

The Weight on Planets Calculator runs entirely in your browser. The mass or weight value you enter never leaves your device and is not uploaded to ArrayKit.

Open the Mass Calculator

About Weight on Planets Calculator

Weight on Planets Calculator takes your mass (or your everyday Earth weight, which is numerically the same in kilograms or pounds) and multiplies it by the surface gravity of the Sun and every planet, plus the Moon and Pluto, to show what a scale would read there. A Metric / US toggle switches between kilograms and pounds so the table always matches the unit you think in. It is handy for classroom physics, space trivia, or just satisfying curiosity about how much lighter you would feel on the Moon or how crushing Jupiter's pull would be. Your mass never changes — only the local gravity does. Everything computes locally in your browser, so the numbers you type are never uploaded anywhere.

Features

Converts one mass into weight on the Sun, Moon, and every planet at once
Uses each body's real average surface gravity for the calculation
Metric (kg) and US / Imperial (lb) unit toggle
Instant results as you type, no submit button needed
Copy a plain-text summary of the whole weight table
Clear error message when the mass field is empty or 0 or less
Shows Earth weight alongside every other body for easy comparison
Runs entirely in your browser with nothing uploaded

How to use the Weight on Planets Calculator

Enter your mass, or your everyday Earth weight in kg or lb
Pick Metric (kg) or US / Imperial (lb) units
Read your weight on every body in the results table
Copy the summary if you want to save or share the figures

Example

Input

70 kg

Output

Moon: 11.3 kgf · Mars: 26.5 kgf

70 kg times each body's gravity, converted back to kilogram-force.

Common errors & troubleshooting

Weight Calculator shows an error instead of a table. — Enter a mass or weight greater than 0. Blank fields and negative numbers are rejected since they cannot map to a real weight.
Moon weight does not look like exactly one sixth of the Earth figure. — That is expected — lunar gravity is about 1.62 m/s² versus Earth's 9.81 m/s², a ratio close to but not exactly one sixth, so the Weight Calculator shows the precise figure.
Numbers look too large after switching to US units. — Check the Metric / US toggle — pounds-force numbers are larger than the equivalent kilogram-force numbers, so mixing the two systems mentally can make a correct result look off.
Jupiter's figure seems close to Earth's despite being a much bigger planet. — Jupiter's huge radius spreads its mass out, so its surface gravity is only around 2.5 times Earth's rather than dozens of times larger — the Weight Calculator uses the real published value.

Frequently asked questions

What does the Weight on Planets Calculator actually compute?: It multiplies your mass by the surface gravity of the Sun, each planet, and the Moon and Pluto, then reports the result as a kilogram-force or pound-force figure — what a scale on that body would show.
How much would I weigh on the Moon according to this calculator?: The Weight on Planets Calculator uses lunar gravity of about 1.62 m/s², so your Moon weight comes out to roughly one sixth of your Earth weight — 70 kg on Earth is about 11.3 kgf on the Moon.
Does the Weight Calculator use my mass or my weight as input?: Both work the same way. On Earth, weight in kilogram-force is numerically almost identical to mass in kilograms, so you can type either your mass or your everyday Earth weight.
Can I switch the Weight Calculator to pounds?: Yes. Toggle Metric / US and the input and every row of the results table switch between kilograms and pounds automatically.
Where do the planet gravity figures come from?: The Weight Calculator uses widely published average surface gravity values for the Sun and each planet, plus the Moon and Pluto — they are estimates for comparison and learning, not precise scientific measurements.
Is my mass or weight sent anywhere when I use this calculator?: No. The Weight on Planets Calculator runs entirely in your browser. The number you type never leaves your device and is not uploaded to ArrayKit.

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