Posted by **Kay** on Wednesday, October 3, 2007 at 5:49pm.

I am having trouble changing lbs to kilograms to newtons. Can someone please help me?

- science -
**bobpursley**, Wednesday, October 3, 2007 at 5:58pm
lbs is normally a force, but sometimes it is treated as a mass. Kilogram is a mass unit, and Newton is a force unit.

It is impossible to go from mass to force unless you are in a gravitational field. At Earth's surface, the gravitational field is 9.8 Newton/kilogram

20kg weighs at Earth Surface...

20*9.8kg

2.2lbs(mass)= 1kg

So 34 lbs (1kg/2.2lbs)=34/2.2 kg

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