With this module you can transfer nodes from one content type to another. The fields must of course be of the same nature.
You think: 'Where could this module be used for?'. Well, I have already wanted to change the name of a content type several times. This is possible, but you always use the original machine name of the content type. With this you can solve this to transfer everything to the new type. Also someone who transfers different content types to one wants to work with this.
What do you want to convert?
Which fields match?
One can even create values.
A possible result..