How to find the position of a welded Part in reference to another welded Part?

I want to move a welded Part to the position of another welded Part. I think I would need to do something along the lines of using :ToWorldSpace() on the C0 value of the target part and then doing :ToObjectSpace() for the moving Part’s C0… This is hard for me to wrap my head around. Any help is appreciated.

Just do

Part1.CFrame = Part2.CFrame

Use Magnitude:

I forgot to mention that both Parts have other welds as well. What you suggested would only move Part1 and not other parts welded to it.