How Much Does the Moon Weigh?

Photo of author

Karen Hill

The weight of an object is really a measure of the force of gravity exerted on it by the earth.

the moon as seen from earth

So bodies such as the earth and the moon don’t really “weigh” anything. But the earth and the moon do have mass, which is a measure of how much matter these bodies are composed of.

The moon has a mass equal to about 1/81 of the mass of the earth. So the moon “weighs” 162 sextillion pounds, or
162,000,000,000,000,000,000,000 pounds.

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