Towel bar placement over toilet?

I like to either stretch them all the way out or fold then in half to help the dry better.

Here is input: Whatever height is most comfortable for you considering your height. If you are remodeling a home to sell, I would place it at around 4 feet. Just make sure that a large bath towel...

usually 4 ft unless it is a kids bath

You want to stretch them completely out so they will dry. Otherwise they will smell like mildew.

The norm is 48 inches from the floor in public housing units / tenemant buildings--but some people in privately owned homes set it differently according to their bathroom decor and or height.