Example 1
A 70 kg person on Earth with g = 9.81 m/s² has a weight of about 687 N.
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Physics tools › Weight calculator
Mendeleev · Physics
Weight calculator
Mass is measured in kilograms; weight is a force measured in newtons. The same object keeps essentially the same mass on the Moon, but its weight changes because g is different.
Formula usedW = mg
Calculate
Weight calculator
What do the symbols mean?
Wweight
mmass
ggravitational field strength
Two worked examples
Example 2
On the Moon, using g ≈ 1.62 m/s², the same 70 kg mass has a weight of only 113 N.
Good to knowIn English-language physics, weight is commonly written W or w.