Weight calculator

Mass is how much matter there is; weight is the force gravity puts on it. On the Moon your mass is the same but you weigh about a sixth as much.

Your answer

Weight on Earth667.2 N

Weight on other worlds (as a scale would read it)
Place	Gravity (m/s²)	Scale reading
Earth	9.81	150 lb
Moon	1.62	24.8 lb
Mercury	3.7	56.6 lb
Venus	8.87	135.7 lb
Mars	3.71	56.7 lb
Jupiter	24.79	379.2 lb
Saturn	10.44	159.7 lb
Uranus	8.69	132.9 lb
Neptune	11.15	170.5 lb
Pluto	0.62	9.5 lb

Worked out in your browser. Nothing you type is sent to a server.

How we worked it out

Updated as you change the numbers.

Weight = mass × gravitational acceleration (W = mg); g on Earth = 9.80665 m/s² (standard gravity).

Method and assumptions

A bathroom scale shows weight as if gravity were Earth’s standard 9.80665 m/s². On another world the reading scales with its surface gravity. Values for the gas giants are at the cloud tops; Pluto’s is approximate.

Questions

How much would a 150 lb person weigh on the Moon?

About 24.8 lb.

Sources

NASA Planetary Fact Sheet

Method and figures checked on October 31, 2026. Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

Embed this calculator on your site

Free to use. Paste this where you want the calculator; it runs in your visitors’ browsers, sets no cookies and sends nothing to us.

<iframe src="https://glencalc.com/embed/weight-calculator" title="Weight calculator" width="100%" height="720" frameborder="0" loading="lazy"></iframe>