Space calculator: weight, age and travel time in space
How much would you weigh on the Moon, how old would you be on Mars and how long would it take to reach the stars? Enter your weight and date of birth, or pick a destination and a speed – the calculator instantly shows your weight, age, travel time and arrival date. Distances to the Moon and planets are calculated live from orbital data.
Space calculator
Where to?
Mars · Distance ≈ 54,600,000 km
How fast?
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Earth
MarsHow long does a trip into space take?
Travel time at average distance – tap for the calculation and comparisons.
| Car | Airplane | Rocket | Speed of light | |
|---|---|---|---|---|
| Moon | 160 days | 17.8 days | 6.3 hours | 1.3 seconds |
| Mars | 260 years | 29 years | 150 days | 12.5 minutes |
| Sun | 170 years | 19 years | 100 days | 8.3 minutes |
| Jupiter | 890 years | 99 years | 1.5 years | 43 minutes |
| Saturn | 1,600 years | 180 years | 2.7 years | 79 minutes |
| Neptune | 5,100 years | 570 years | 8.4 years | 4.2 hours |
| Proxima Centauri | 46 million years | 5.1 million years | 75,000 years | 4.2 years |
| Andromeda Galaxy | 27 trillion years | 3 trillion years | 44 billion years | 2.5 million years |
Frequently asked questions
How much would I weigh on the Moon, Mars and Jupiter?
On the Moon you would weigh only about 16.5% of your Earth weight, on Mars about 38% and on Jupiter about 2.4 times as much. At 70 kg that is roughly 12 kg on the Moon, 26 kg on Mars and 165 kg on Jupiter. Your mass stays the same – only gravity changes what a scale shows.
How long does it take to travel to Mars?
At the closest distance of about 55 million km, light needs about 3 minutes; at the farthest (about 400 million km) about 22 minutes. At 100 km/h, like a car, it would take over 60 years, and in an airliner (900 km/h) almost 7 years. Real spacecraft take about 6 to 9 months.
Are the distances in the calculator accurate?
The Moon, Sun and planets are calculated live from orbital data. For stars, the neutron star and the black hole the distances are rounded values for the nearest known examples (Sirius, PSR J0437, Gaia BH1). The trip is a straight line at constant speed – no acceleration, braking or detours.