What do you weigh out there?
Your weight is really just how hard a world's gravity pulls on you. Change the world, and the number changes β from feather-light on the Moon to impossible near a black hole.
Units
Our Solar System
βΏοΈMercury
22.7 kg
0.38Γ Earth gravity
A scorched, cratered little world.
βοΈVenus
54.4 kg
0.91Γ Earth gravity
Almost Earth-like pull β under crushing clouds.
πEarth
60 kg
same gravity as Earth
Home base β this is your normal weight.
πThe Moon
10 kg
0.17Γ Earth gravity
You could jump about 6Γ higher here!
π΄Mars
22.6 kg
0.38Γ Earth gravity
Light and springy β great for hopping.
πͺJupiter
152 kg
2.53Γ Earth gravity
The giant would pin you to the ground.
πSaturn
64.2 kg
1.07Γ Earth gravity
Surprisingly close to Earth for a giant.
π΅Uranus
54 kg
0.9Γ Earth gravity
A tilted ice giant, spinning on its side.
πNeptune
68.4 kg
1.14Γ Earth gravity
Windiest planet β a bit heavier than Earth.
βοΈPluto
3.8 kg
0.06Γ Earth gravity
Barely holds you down β a gentle drift.
βοΈThe Sun
1,674 kg
27.9Γ Earth gravity
If it had a surface, it would flatten you.
Major moons
Most moons are tiny worlds with gentle gravity β you'd be a champion jumper on every one.
πIo Β· Jupiter
11 kg
0.18Γ Earth gravity
The most volcanically active world we know of.
πGanymede Β· Jupiter
8.8 kg
0.15Γ Earth gravity
The biggest moon in the solar system β larger than Mercury.
π§Europa Β· Jupiter
8 kg
0.13Γ Earth gravity
An icy crust hiding a deep, salty ocean.
βͺCallisto Β· Jupiter
7.6 kg
0.13Γ Earth gravity
One of the most cratered objects anywhere.
π Titan Β· Saturn
8.3 kg
0.14Γ Earth gravity
Thick orange air and lakes of liquid methane.
βοΈRhea Β· Saturn
1.6 kg
0.03Γ Earth gravity
Saturn's second-largest, an icy cratered world.
βͺDione Β· Saturn
1.4 kg
0.02Γ Earth gravity
Icy, laced with bright wispy cliffs.
πIapetus Β· Saturn
1.4 kg
0.02Γ Earth gravity
Two-faced: one side bright, one side coal-black.
π§Tethys Β· Saturn
0.9 kg
0.02Γ Earth gravity
Wears a giant canyon most of the way around it.
π¦Enceladus Β· Saturn
0.68 kg
0.01Γ Earth gravity
Shoots icy fountains into space β you'd barely stay down.
πMimas Β· Saturn
0.39 kg
0.006Γ Earth gravity
A giant crater makes it look like the Death Star.
πPhoebe Β· Saturn
0.3 kg
0.005Γ Earth gravity
Dark and orbits backwards β probably a captured world.
π§½Hyperion Β· Saturn
0.12 kg
0.002Γ Earth gravity
Shaped like a sponge and tumbles chaotically.
πTitania Β· Uranus
2.3 kg
0.04Γ Earth gravity
The largest of Uranus's moons.
π΅Triton Β· Neptune
4.7 kg
0.08Γ Earth gravity
Orbits Neptune backwards and erupts icy geysers.
π₯Phobos Β· Mars
0.036 kg
0.0006Γ Earth gravity
Gravity so weak a hard jump could fling you into space.
πͺ¨Deimos Β· Mars
0.018 kg
0.0003Γ Earth gravity
Even tinier than Phobos β you could throw a ball into orbit.
π€Charon Β· Pluto
1.7 kg
0.03Γ Earth gravity
So big it and Pluto swing around each other like a double world.
Exoplanets (estimated)
Worlds around other stars. Gravity is estimated from their measured size and mass.
πͺTRAPPIST-1e
49.2 kg
0.82Γ Earth gravity
An Earth-sized world ~40 light-years away.
πProxima Centauri b
66 kg
1.1Γ Earth gravity
The closest known exoplanet to us.
πKepler-452b
114 kg
1.9Γ Earth gravity
βEarth's cousinβ β a super-Earth (estimated).
π55 Cancri e
138 kg
2.3Γ Earth gravity
A lava world where it may rain rock (estimated).
π TRAPPIST-1d
37.2 kg
0.62Γ Earth gravity
The lightest of seven planets circling one tiny red star.
πKepler-186f
63 kg
1.05Γ Earth gravity
First Earth-sized world found in its star's habitable zone.
π§K2-18b
76.2 kg
1.27Γ Earth gravity
Water vapour was detected in its atmosphere.
βοΈGJ 1214 b
54.6 kg
0.91Γ Earth gravity
A steamy 'mini-Neptune' wrapped in thick haze.
π₯Kepler-10b
92.4 kg
1.54Γ Earth gravity
Molten on one side β it orbits its star in under a day.
πHD 189733 b
133 kg
2.21Γ Earth gravity
Deep blue, with 5,400 mph winds that may rain glass sideways.
πWASP-17b
19.8 kg
0.33Γ Earth gravity
Twice Jupiter's width but puffed up like candy floss β you'd weigh a third of what you do here.
π₯΅HD 80606 b
618 kg
10.3Γ Earth gravity
A giant on a wild looping orbit; it roasts to 1,200Β°C in six hours.
Extreme gravity
The universe's heavyweights (and one featherweight). These are where physics gets wild.
βBetelgeuse (red giant)
0.006 kg
0.0001Γ Earth gravity
So puffed-up you'd weigh almost nothing.
πA white dwarf
21 million kg
350,000Γ Earth gravity
A dead star crushed to the size of Earth.
πA neutron star
12 trillion kg
2.0e+11Γ Earth gravity
A teaspoon weighs a billion tons. You'd be a smear.
π³οΈA black hole
β
βΓ Earth gravity
Gravity so strong not even light escapes β you'd be stretched into spaghetti.
Gravity figures are surface-gravity estimates relative to Earth. Exoplanet and extreme-object values are rounded approximations meant for a sense of scale β near a real black hole, "weight" stops meaning anything at all.
More number toys
Jump into another calculator.
ποΈ Date Calculator
The gap between any two dates β even billions of years.
β±οΈ Cosmic You
Seconds alive, heartbeats, distance flown through space.
π
Calendars
One day across the Gregorian, Maya, Islamic & more.
π’ Big Numbers
How big is a billion? Every named number, written out.
βΎοΈ Legendary Constants
Ο, e, Ο, β2 & Ο β endless digits, spirals & digit hunts.
𧬠Prime Lab
Factor numbers, GCD/LCM, primality & the Ulam spiral.
π Speed & Distance
Light-travel times and how far to real places.
π Converters
Every unit at once β length, mass, speed, data & more.
βοΈ Compare
You vs. a blue whale, a car vs. the speed of light.
π Cryptography
Scramble a message with a dozen ciphers β Caesar, Morse & more.
π» How Computers Count
Binary, bytes & how a computer stores your words.
π² Random
Random numbers, dice & coins β with facts about every result.
π Probability & Odds
Birthday paradox, Monty Hall, dice curves & odds.