Weight on Other Planets Calculator
Calculate your weight on every planet, the Sun, and the Moon using each body's real surface gravity from NASA data.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
Formula
weight on body = Earth weight × (g_body ÷ g_earth) · g = G·M ÷ R²
This tool provides educational conversions of astronomical distances only. It is not a navigation, mission-planning, or ephemeris service. For professional or spacecraft work, use official IAU, NASA, or observatory data products.
About the Weight on Other Planets Calculator
The weight on other planets calculator shows what you would weigh on the Moon, the other planets and other bodies in the Solar System. Your mass stays the same everywhere, but weight depends on surface gravity, so the tool multiplies your Earth weight by each body’s surface gravity relative to Earth’s. On the Moon you would weigh about one sixth of your Earth weight, and on Jupiter about two and a half times as much.
How to use it
- 1Enter your weight on Earth.
- 2Choose kilograms or pounds.
- 3Press Calculate to see your weight on every planet, the Sun, and the Moon.
Worked example
a 70 kg person on Earth weighs about 165 kg on Jupiter (g ≈ 24.79 m/s²), 26.4 kg on the Moon (g ≈ 1.62 m/s²), and 1,958 kg on the Sun (g ≈ 274 m/s²).
How it works
How weight on other planets is calculated
Weight is the force of gravity on a mass: W = m × g. Your mass stays the same everywhere, but g changes with each body's mass and radius via g = GM/R². The calculator scales your Earth weight by the ratio g_body ÷ g_earth.
Surface gravities (m/s²)
- Mercury 3.7 · Venus 8.87 · Earth 9.81 · Mars 3.71
- Jupiter 24.79 · Saturn 10.44 · Uranus 8.87 · Neptune 11.15
- Moon 1.62 · Sun 274.0
Who it is for
Students, educators, and curious learners exploring how gravity varies across the Solar System.
Why it helps
Surface gravity differs because each body has a different mass and radius — seeing your weight change makes gravity tangible.
Common use cases
- Classroom gravity and planetary science lessons
- Comparing how hard you'd fall on different worlds
- Understanding why Jupiter's gravity is so strong
- Fun space facts for outreach and social media
Tips for better results
- Surface gravity g = GM/R², so large massive planets pull harder.
- Gas giants have no solid surface; the value is at the 1-bar pressure level.
- The Sun's gravity is about 28× Earth's — you'd weigh 28× more.
- Use kilograms for SI consistency in physics work.
Common mistakes to avoid
- Confusing mass (constant) with weight (depends on gravity).
- Expecting bigger planets to always have stronger gravity — density matters too.
- Treating gas-giant surface gravity as if measured at a solid surface.
Frequently asked questions
A:Weight depends on local gravity. Each planet has a different mass and radius, so its surface gravity g = GM/R² differs, changing your weight while your mass stays constant.
A:Yes. Jupiter's surface gravity is about 24.79 m/s², roughly 2.53× Earth's, so a 70 kg person would weigh about 177 kg there.
A:The Sun is about 333,000× Earth's mass with only ~109× its radius, giving a surface gravity near 274 m/s² — about 28× Earth's.
A:Yes. It runs in your browser on CalcWisee with no sign-up required.
Reviewed for accuracy · Last updated October 7, 2026
The astronomical unit is taken as exactly 149,597,870,700 metres per the IAU 2012 definition. Related light-time and light-year factors use the defined speed of light and the IAU Julian year where applicable.
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources
