How Much Would You Weigh on Each Planet?

Planetary Weight Calculator — Find Your Weight on Other Planets

Enter your Earth weight to see how gravity would change your weight on every planet. Select a card or chart bar for a detailed comparison.

Eight planets. One unchanged mass.

Planetary Weight Calculator

Enable JavaScript for live results. The 70 kg examples, reference table, and full explanations remain available below.

Your Earth scale readingInput and result unitsKilograms (kg)Pounds (lb)Reset to 70 kg

Unit changes convert your input while preserving mass. Range: 0.1–10,000 kg or its pound equivalent. All calculations stay in your browser.

Gravity-only reference: Earth = 9.80 m/s². Rotation, local variations, and buoyancy are excluded. kg/lb results are scale equivalents; forces below use newtons.

Mercury26.4 kg0.378× Earth · lower gravityA smaller rocky world with much lower reference gravity.Venus63.4 kg0.905× Earth · lower gravityReference gravity is fairly close to Earth’s; surface conditions are very different.Earth70.0 kg1.000× Earth · same gravityThe fixed calibration reference: your input is unchanged here.Mars26.5 kg0.379× Earth · lower gravityAbout 38% of Earth’s reference gravity, with the same mass.Jupiter177.1 kg2.530× Earth · higher gravityThe strongest planetary reference here, at an atmospheric level.Saturn74.6 kg1.065× Earth · higher gravityGravity-only reference; rotation would change apparent scale readings.Uranus63.4 kg0.905× Earth · lower gravityA giant planet with reference gravity slightly below Earth’s.Neptune79.6 kg1.138× Earth · higher gravityStronger reference gravity than Earth despite its distant solar orbit.

Bonus: What Would You Weigh on the Moon?

Moon11.6 kg0.165× Earth · lower gravityBonus: Earth’s natural satellite, with about one-sixth Earth’s gravity.

Bonus: What Would You Weigh on Pluto?

Pluto · dwarf planet4.4 kg0.063× Earth · lower gravityDwarf planet bonus, separate from the eight planets and the Moon.

Your Weight on Mars

On Mars, the gravity-only scale equivalent is 37.9% of your Earth reading (0.379× Earth). Your mass stays 70.0 kg.

Earth reference

70.0 kg686.0 N reference weight force

Mars

26.5 kg259.7 N reference weight force

426.3 N less reference weight force than Earth.
3.71 m/s² reference gravity

About 38% of Earth’s reference gravity, with the same mass.

Idealized equatorial gravity reference; local variations, rotation, and buoyancy are excluded.

The two bars share one linear force scale. The larger reference force fills its bar.

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Weight Comparison Chart

Earth-scale equivalents (kg) · linear scale from zero

Select any bar to view its comparison. All bars share one scale; Jupiter’s full value sets the upper end.

088.5177.1 kg

Mercury26.4 kgVenus63.4 kgEarth70.0 kgMars26.5 kgJupiter177.1 kgSaturn74.6 kgUranus63.4 kgNeptune79.6 kgMoon*11.6 kgPluto†4.4 kg

* The Moon is a natural satellite; † Pluto is a dwarf planet. Both are additional comparisons, not ninth planets. Bar length measures the reference equivalent, not the size of a planet.

Enter your Earth reading or select a planet.

Weight on Every Planet — Comparison Table

The fixed example below uses a 70 kg Earth-scale reading. It does not change with your input. The calculator, chart, and HTML examples all use the same reference values and formula; equivalents are rounded only for display.

These are approximate reference accelerations, not precision predictions for every latitude or altitude. The eight planets use NASA JPL’s equatorial-gravity table. The Moon bonus uses NASA’s 1.62 m/s² surface-gravity reference. The giant planets use their 1-bar atmospheric reference radii.

How Much Would You Weigh on Mercury?

On Mercury, a 70 kg Earth-scale reading becomes about 26.4 kg equivalent. Its 3.70 m/s² reference gravity is 0.378 times Earth’s, or 37.8%. Your mass remains 70 kg.

Mercury is dense, but density alone does not determine surface gravity. Gravitational acceleration depends on the planet’s mass and the distance from its center. Mercury’s small total mass outweighs the effect of its compact size, giving a much weaker reference pull than Earth’s. Being close to the Sun does not make its local surface gravity stronger.

How Much Would You Weigh on Venus?

On Venus, the same 70 kg example gives approximately 63.4 kg equivalent. The 8.87 m/s² reference is 0.905 times Earth’s gravity, so the gravitational weight force is only about 9.5% lower.

Venus is relatively similar to Earth in size and mass, making their gravity references fairly close. That similarity does not make Venus comfortable or accessible: its atmosphere, pressure, and temperature are very different. The calculator isolates gravitational force rather than simulating survival conditions, atmospheric buoyancy, or an actual scale placed on Venus.

How Much Would You Weigh on Mars?

On Mars, a 70 kg Earth-scale reading becomes approximately 26.5 kg equivalent. Mars gravity compared with Earth is 0.379×, or 37.9%, using the 3.71 m/s² reference.

The weight on Mars calculator multiplies your Earth reading by that ratio. For the example, 70 × 3.71 / 9.80 = 26.5. The associated gravitational force is 259.7 N, compared with 686 N at the Earth baseline.

Mars has much less mass than Earth, producing a weaker reference field at its surface. Your own mass and inertia remain unchanged: the same person still resists changes in motion. Supporting yourself against gravity requires less force, but moving, balancing, and stopping do not become identical to moving a smaller-mass person on Earth. This tool calculates a force comparison, not a movement or jump-height simulation.

How Much Would You Weigh on Jupiter?

On Jupiter, the 70 kg example becomes about 177.1 kg equivalent. Its 24.79 m/s² reference gravity is 2.530 times Earth’s, corresponding to 1,735.3 N of reference gravitational force.

Jupiter’s enormous mass produces the strongest gravity in this eight-planet dataset, even at its large reference radius. Its bar is therefore genuinely much longer than Earth’s; the graph does not compress Jupiter to make the results look similar.

You could not place an ordinary bathroom scale on a solid Jovian surface. The reference is associated with the equatorial 1-bar atmospheric radius. This is a theoretical gravity-only comparison, excluding the effects of rotation and the atmosphere itself.

How Much Would You Weigh on Saturn?

At Saturn’s gravity-only reference, a 70 kg Earth reading becomes approximately 74.6 kg equivalent. The JPL value of 10.44 m/s² gives a factor of 1.065 relative to Earth.

Saturn is far more massive than Earth, but its large radius matters too: in the simple relationship g ≈ GM/R², increasing radius reduces the field at the reference level. Total mass alone therefore does not decide the ranking.

The definition matters especially here. NASA’s detailed Saturn sheet separately lists an effective equatorial acceleration of 8.96 m/s², including rotation. That is a different quantity from this tool’s gravity-only reference. We do not mix it into the table. Saturn also has no Earth-like solid surface at its 1-bar atmospheric reference level.

How Much Would You Weigh on Uranus?

On Uranus, the 70 kg example gives about 63.4 kg equivalent, using 8.87 m/s² or 0.905 times Earth’s reference gravity.

A planet can be much larger and more massive than Earth without having proportionally stronger gravity at its reference radius. Uranus’s large size helps explain why its reference value is slightly below Earth’s. It matches Venus’s value at the displayed dataset precision, but that numerical agreement does not make their environments similar. Uranus is an ice giant; its comparison uses an atmospheric radius, not a normal solid surface.

How Much Would You Weigh on Neptune?

On Neptune, a 70 kg Earth-scale reading becomes approximately 79.6 kg equivalent. Its 11.15 m/s² reference gravity is 1.138 times Earth’s, or 113.8%.

Neptune’s great distance from the Sun does not set this local gravity value. Planetary mass and reference radius are the relevant quantities in this model. Distance from the Sun instead changes effects such as received sunlight intensity and sunlight travel time. As with the other giants, Neptune’s value is an atmospheric-level comparison.

What Would You Weigh on Pluto?

With the 0.62 m/s² surface-gravity reference from the NASA Pluto fact sheet, a 70 kg Earth reading becomes about 4.4 kg equivalent, or 43.4 N of weight force. Your mass remains 70 kg. Pluto is a dwarf planet, shown separately from the eight planets.

What Would You Weigh on the Moon?

Bonus: on the Moon, the 70 kg example becomes about 11.6 kg equivalent, with a reference weight force of 113.4 N. Its 1.62 m/s² reference is about one-sixth of Earth’s.

The Moon is Earth’s natural satellite, not a ninth planet. Your mass remains 70 kg there. The Moon bonus is always shown alongside the main eight-planet comparison.

How Do You Calculate Your Weight on Another Planet?

Gravity also changes ideal motion after takeoff. Compare jump heights and flight times on other planets while keeping the same launch speed, and see why this is a different question from a scale reading.

For another change of units, calculate your age in planetary years. It measures the same elapsed lifetime using each planet’s orbital period, without changing your biological age.

First distinguish force from a familiar scale reading. Gravitational weight force is F = m × g: mass in kilograms multiplied by acceleration in meters per second squared gives force in newtons.

Pounds are converted using 1 lb = 0.45359237 kg. The calculator stores one internal mass, so changing units converts the displayed input rather than treating 70 kg and 70 lb as the same person. Display rounding does not change the stored value during unit switches.

Mass vs. Weight — What's the Difference?

Mass is a property of an object, measured in kilograms. Weight is a force, measured in newtons. A 70 kg person remains a 70 kg person on Mars, while the reference gravitational force falls from 686 N to 259.7 N.

Everyday conversation often uses “weight” for a scale reading in kilograms or pounds. This page keeps that familiar comparison but labels it as an Earth-scale equivalent. It is not a claim that your body loses matter. A real scale also depends on calibration, support, rotation, and local conditions; these results deliberately use the stated simplified gravity model.

Which Planet Would You Weigh the Most On?

Jupiter has the highest reference gravity among the eight planets used here: 24.79 m/s², or about 2.53× Earth’s. A 70 kg Earth reading corresponds to about 177.1 kg equivalent. That is a force comparison at the stated atmospheric reference, not a place where someone could stand.

Which Planet Would You Weigh the Least On?

Mercury is lowest in this dataset at 3.70 m/s², just below Mars at 3.71 m/s². The 70 kg equivalents are 26.4 kg and 26.5 kg, respectively. Rounded introductory tables sometimes make them look identical. The Moon and Pluto bonuses give lower equivalents still, but neither is part of the eight-planet ranking.

Explore Gravity Across the Solar System

Compare your reference results, then explore the Solar System Map for orbital context. A planet’s gravity, the Sun’s apparent size, and incoming sunlight answer different physical questions.

Sources, definitions, and precision

• NIST Handbook 44, Appendix C — the pound-to-kilogram conversion.
• NASA JPL: Planetary Physical Parameters — the eight equatorial-gravity references, used at their published two-decimal precision.
• NASA: Moon Fact Sheet — the 1.62 m/s² lunar gravity reference.
• NASA: Saturn Fact Sheet and definitions of gravity and effective acceleration — why rotation-inclusive values differ.

We treat the JPL references as a simplified gravity-only comparison at the equatorial reference radius, using Earth = 9.80 m/s². No centrifugal, local-field, altitude, or buoyancy corrections are applied. For giant planets the radius is an atmospheric reference at 1 bar. Displayed equivalents are rounded; the calculations retain the stored reference precision.