How Much Would I Weigh on Other Planets?

What Is a Weight on Other Planets Calculator?

A weight on other planets calculator takes the number a scale shows on Earth and multiplies it by each world’s gravity compared with Earth’s. The result is what a similar scale would read on Mars, the Moon, Jupiter, and the other listed bodies. Mass stays the same; the pull of gravity changes.

How Much Would I Weigh on Mars?

Mars gravity in this dataset is 3.71 m/s², about 37.9% of Earth’s 9.8 m/s². At 150 lb on Earth you would weigh about 56.8 lb on Mars. At 70 kg you would weigh about 26.5 kg. That is why “weight on Mars in pounds” and “weight on Mars in kg” are the same ratio — only the Earth unit changes.

How Much Would I Weigh on the Moon?

The Moon is not a planet, but it is the comparison most people want. Lunar surface gravity is 1.62 m/s², about 16.5% of Earth. 150 lb on Earth becomes about 24.8 lb on the Moon. 70 kg becomes about 11.6 kg.

What Would I Weigh on Jupiter?

Jupiter has the strongest gravity in this list (24.79 m/s², about 2.53× Earth) at the 1-bar reference level. 150 lb on Earth corresponds to about 379.4 lb there. You cannot stand on a solid Jupiter surface — the number is a gravity comparison, not a place to walk.

How Does Weight Change on Other Planets?

Weight is the force of gravity on your mass. A more massive world, or a denser one with a closer surface, pulls harder. That is why Mercury and Mars feel lighter than Earth, Venus is close to Earth, and Jupiter dominates the table. To compare planet sizes or calculate your age on other planets, use those dedicated tools — they measure diameter and orbital years, not surface gravity.

Weight vs. Mass

Mass is how much matter you have. It stays the same on every world. Weight is the force from gravity. On a US bathroom scale, pounds are a everyday reading of that force. Kilograms on a scale are also an everyday mass-equivalent reading — they are not newtons. In physics mode this page reports newtons (and optional lbf) from W = m × g, so kilograms are treated as mass, not as a unit of force.

Weight on Other Planets Formula

Earth scale reading: weight_on_body = Earth weight × (g_body / g_earth)

Physics: W = m × g, with W in newtons when m is in kilograms and g is in m/s².

Worked Examples

• 150 lb on Mars: 150 × (3.71 ÷ 9.8) = 56.8 lb
• 150 lb on the Moon: 150 × (1.62 ÷ 9.8) = 24.8 lb
• 150 lb on Jupiter: 150 × (24.79 ÷ 9.8) = 379.4 lb
• 70 kg on Mars: 70 × (3.71 ÷ 9.8) = 26.5 kg
• 70 kg on the Moon: 70 × (1.62 ÷ 9.8) = 11.6 kg

These figures come from the same calculator engine as the live table.

Planet Surface Gravity Table

Values are NASA/JPL equatorial surface gravity (Planetary Physical Parameters). Moon and Pluto follow the NASA Planetary Fact Sheet. The Sun uses the NASA Sun Fact Sheet and is listed separately because it is a star.

Common Weight Calculation Mistakes

• Confusing mass and weight — mass is unchanged; only the scale reading changes.
• Using pounds as mass in W = m × g without converting to kilograms first.
• Treating the Sun as a planet. It is listed under other bodies for gravity comparison only.
• Assuming gas giants have a solid surface you could stand on.
• Mixing gravity reference data from different tables (mean vs equatorial, or 23.1 vs 24.79 for Jupiter).
• Rounding the gravity ratio too early, then multiplying — this page keeps full precision until display.

Frequently Asked Questions

How much would I weigh on Mars?

About 38% of your Earth weight. At 150 lb on Earth the calculator shows 56.8 lb on Mars. At 70 kg it shows 26.5 kg. Mars gravity here is 3.71 m/s² versus Earth’s 9.80 m/s².

How much would I weigh on the Moon?

About 16.5% of your Earth weight. 150 lb on Earth is 24.8 lb on the Moon; 70 kg is 11.6 kg. The Moon is listed because people ask for it, not because it is a planet.

What would I weigh on Jupiter?

About 2.53× your Earth weight at the 1-bar reference level (24.79 m/s²). 150 lb on Earth corresponds to 379.4 lb there. That is a gravity comparison — Jupiter has no solid surface to stand on.

Does my mass change on another planet?

No. Mass is the amount of matter and stays the same. Only the gravitational force — the scale reading — changes.

What is the difference between mass and weight?

Mass is measured in kilograms in SI. Weight is a force (newtons). A US scale’s pounds are an everyday force reading. This tool’s Earth Scale mode repeats that everyday language; physics mode reports newtons from mass × gravity.

How is weight on another planet calculated?

Earth scale: weight_on_body = Earth weight × (g_body / 9.80). Physics: W = m × g. Both use the same NASA/JPL gravity column on this page.

Which planet has the strongest gravity?

Jupiter, in this list of planets (24.79 m/s²). The Sun is stronger (274 m/s²) but it is a star, not a planet, and has no solid surface.

Can I calculate my weight on all planets in pounds?

Yes. Leave the unit on LB (the default) or tap 100 / 150 / 200 lb. The table updates every planet in pounds immediately.

Can I calculate my weight on all planets in kilograms?

Yes. Switch to KG or use the 50 / 70 / 80 kg presets. The same gravity ratios are applied; only the Earth unit changes.

Can I use this as a physics weight calculator?

Yes. Mass / Physics mode treats the input as kilograms of mass and reports newtons (and lbf). It does not treat kilograms as a unit of force.

Related Space Calculators

• calculate your age on other planets — Turn a birth date into orbital years on each world.
• compare planet sizes — See diameters and volume relative to Earth.
• compare planetary day lengths — Sidereal rotation is a different measurement from surface gravity.
• compare orbital years — How long a year lasts on each planet.
• convert planetary distances — AU, kilometers, and miles for mean solar-system distances.
• explore sunrise and sunset on other planets — Daylight length estimates from rotation, not gravity.

Day length and years are not gravity. compare planetary day lengths or compare orbital years if that is the question. For mean distances, convert planetary distances. For daylight estimates, explore sunrise and sunset on other planets.