Planet weight converter
Convert Earth weight to the eight planets, the Moon and the Sun using NASA Planetary Fact Sheet surface gravities (Mercury 3.7, Mars 3.721, Jupiter 24.79 m/s²): 70 kg becomes 26.56 kg on Mars and 176.95 kg on Jupiter, with the actual force in newtons and a full comparison table.
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Conversion result
Mass stays the same; weight changes.
Enter your weight to convert it
Weight there: 0 · Gravity ratio: 0 · Gravity: 0
What this tool does
- Teaching: show that weight changes while mass does not, with the newton value to separate the two.
- Science fiction and games: give characters plausible numbers for a Mars base or Jupiter station.
- Training and fitness: estimate how loads, jumps and bone loading differ at other gravities.
Example
Input
60
Output
地球上 60 kg，在木星上相当于 151.667177 kg（木星重力 24.79 m/s²） 换算倍数：24.79 ÷ 9.807 = 2.527786 实际重力：1487.4 N（质量 × 该行星重力加速度） 全部天体对照：水星 22.636892 kg、金星 54.26736 kg、地球 60 kg、月球 9.911288 kg、火星 22.765372 kg、木星 151.667177 kg、土星 63.872744 kg、天王星 54.26736 kg、海王星 68.21658 kg、太阳 1676.353625 kg 说明：日常说的「体重」是把重力按地球重力折回质量，所以木星上是约 2.53 倍、火星上约 0.38 倍。
70 kg on Mars reads 26.5596 kg (0.379×) with an actual force of 260.47 N.
Frequently asked questions
Where do the gravity values come from?
From the NASA Goddard Planetary Fact Sheet equatorial surface gravity in m/s²: Mercury 3.7, Venus 8.87, Earth 9.807, Mars 3.721, Jupiter 24.79, Saturn 10.44, Uranus 8.87, Neptune 11.15, plus the Moon at 1.62 and the Sun at 274. Gas giants use the 1-bar level since they have no solid surface.
Why do Venus and Uranus both read 8.87?
Coincidence. Venus is smaller and lighter than Earth and lands at about 8.87 m/s²; Uranus is far more massive but also far larger, giving the same figure. Both are slightly weaker than Earth.
Does weight change mean mass changes?
No. Mass is the amount of matter and stays the same everywhere (70 kg is 70 kg); only weight changes. Saying “26.6 kg on Mars” folds Mars gravity back through Earth gravity — physically you should say “260.47 N of weight”.
Why 2.5× on Jupiter?
Jupiter's gravity is 24.79 m/s², which is 24.79 ÷ 9.807 = 2.528 times Earth's, so the same mass experiences 2.528× the force. The Sun is even more extreme: 274 ÷ 9.807 ≈ 27.94×.
Can I use the Moon or the Sun?
Yes — both are in the list (Moon 1.62, Sun 274). The Sun entry is an extreme comparison only; you would be vaporised instantly.
Keywords：行星体重planet weight火星体重木星体重重力换算NASA 重力表moon weight宇宙体重