Weight Calculator · Practical guide
How Much Would I Weigh on the Moon?
The Moon's gravity is about 16.6% of Earth's, so multiply your weight by 0.166 to find your lunar weight.
At a glance
About One-Sixth of Your Earth Weight
The Moon's surface gravity is 1.62 m/s², roughly 16.6% of Earth's 9.81 m/s². To find your lunar weight, multiply your Earth weight by 0.166. A 150 lb person would weigh 24.9 lb on the Moon; a 200 lb person would weigh 33.2 lb. In kilograms, 70 kg becomes about 11.6 kg on a lunar scale.
Interactive tool
Weight Calculator
Enter your own values, then compare the result with the examples below.
Results
Moon Weight for Common Earth Weights
| Earth weight | Moon weight |
|---|---|
| 100 lb (45.4 kg) | 16.6 lb (7.5 kg) |
| 125 lb (56.7 kg) | 20.8 lb (9.4 kg) |
| 150 lb (68.0 kg) | 24.9 lb (11.3 kg) |
| 175 lb (79.4 kg) | 29.1 lb (13.2 kg) |
| 200 lb (90.7 kg) | 33.2 lb (15.1 kg) |
Why You Weigh Less on the Moon
Weight is the pull of gravity on your mass, and gravity depends on the body's mass and radius. The Moon has only about 1.2% of Earth's mass and a quarter of its radius, so its surface gravity is far weaker. Your mass — the amount of matter in you — stays exactly the same; only the force pressing you into the scale changes.
What That Feels Like
At one-sixth weight, the Apollo astronauts could bound across the surface even in suits that weighed about 180 lb on Earth — only ~30 lb on the Moon. A vertical jump lifts you roughly six times higher, and dropped objects fall about 2.5 times slower than on Earth. It is also why long-term lunar living would affect muscles and bones: the body adapts to the load it carries.
Frequently Asked Questions
How much would a 70 kg person weigh on the Moon?
Multiply by 0.166: about 11.6 kg on a scale, or 25.6 lb. Your mass remains 70 kg — only the weight force changes.
Is the Moon's gravity exactly one-sixth of Earth's?
Close but not exact. The precise ratio is about 0.166 (1.62 vs 9.81 m/s²), which is why the calculator multiplies by 0.166 rather than dividing by six.
Do I weigh the same everywhere on the Moon?
Nearly. Gravity varies slightly with local geology and elevation, but the differences are tiny compared with the Earth–Moon gap.
Why does my mass stay the same but my weight change?
Mass measures how much matter you contain, which does not depend on location. Weight is gravity pulling on that mass, so it changes wherever gravity changes.