Cosmic nonsense tools. Is anyone out there?
Enter your weight. Find out what you'd weigh on Jupiter, the Moon, or a neutron star.
FunYou run 100m in your best time. In those same seconds, how many times has light circled the Earth?
HotPick a destination. Guess how long light takes. Then get roasted by the universe.
FunThe Solar System orbits the galaxy at 828,000 km/h. Since you were born, where are we now?
FunFly near light speed for a year. Come back. Everyone you knew is old or gone. How much younger are you?
FunYour Amazon package is going to Mars. Pick a shipping method. Find out when it actually arrives.
HotEvery atom in your body was forged in a dying star. How many? Enter your weight and find out.
How many civilizations in the Milky Way could be sending us messages right now? Play with the variables.
Space is a vacuum. Sound can't travel. But if it could, what would the Sun sound like? And when?
HotIf 13.8 billion years fit into one year. When did humans show up? Last 14 seconds. Ouch.
FunYou blink for 0.3 seconds. In that instant, how far has light traveled? To the Moon? Around Earth?
FunPile all 8 billion humans into one heap. How big is it? Smaller than you think. Way smaller.
How high can you jump on Earth? Find out how high you'd soar on the Moon, Jupiter, or a comet.
Enter your age. See how many millions of steps you've taken. Compare it to the Moon. It's depressing.
HotIf the Sun were a basketball on your desk, where would Neptune be? Drag. Zoom. Feel the emptiness.
FunOne teaspoon of neutron star material weighs as much as what? Pick your spoon size and find out.
Pointless is a collection of free, interactive cosmic calculators that answer questions nobody really needs answered — but everyone secretly wants to know. What would you weigh on Jupiter? How long does light take to reach Mars? How high could you jump on the Moon? If the Sun were a basketball, where would Earth be?
Every calculator uses real physics and accurate astronomical data sourced from NASA, ESA, and peer-reviewed astrophysics research. The questions are stupid. The math is not. All calculations run entirely in your browser — no signups, no tracking, no data collection.
This site was built for people who stare up at the sky and think "wait, what?" — and then want to do the math. Whether you're a student, a space enthusiast, or just killing time, these tools are designed to make the universe's scale feel personal. Enter your weight, your age, your sprint time — and see what the cosmos does to you.
New useless tools are added regularly. Bookmark it, share it, or just waste a few minutes staring at the universe's absurd scale.
Jupiter's gravity is 2.5x Earth's. If you weigh 70kg on Earth, you'd weigh 176kg on Jupiter. On a neutron star, you'd weigh about 140 billion kg. Try our weight on other worlds calculator.
When Mars is closest to Earth, light takes about 3 minutes. When it's on the other side of the Sun, about 22 minutes. Use our light travel time calculator.
It estimates how many intelligent civilizations exist in the Milky Way. Our Drake Equation calculator lets you play with the variables.
About 4 billion tons — roughly 2,700 blue whales or 14 times the weight of every human combined. Use our neutron star spoon calculator.
Yes. All tools on Pointless are completely free, no signups, no subscriptions. All calculations run in your browser — your data never leaves your device.
Last updated: September 2026
Information We Collect: Pointless does not collect, store, or transmit any personal information. All calculations run entirely in your browser.
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