How much is 100 cm in pounds?

Answer 1

None, since there can be no conversion. A centimetre is a measure of length in 1-dimensional space while a pound is a measure of mass or monetary value. The two measure different things and, according to basic principles of dimensional analysis, any attempt at conversion from one to the other is fundamentally flawed.

Answer 2

You cannot measure length in pounds. Pounds is weight, centimeters is length, and they're not the same thing at all so you cannot change them into each other.