Standard location of toilet paper roll holder in a bathroom?

I would say within arms reach of the toilet. preferably on the right side. No. If the toilet is near the corner of the room, then the wall that the toilet ISNT laying against is the place for the...

18-22 inches.

The standard placement is 20 - 24 inches from the floor up to the center of the TP holder...

Where ever its convenient for you to reach while sitting on the can.Try putting it across the room and see how that works out for you. :^)

4 inches There is no "AVERAGE" per-se however, 30 to 36 inches high and 6 to 10 inches in front of the toilet works well. These measurements are to centerline of the roll. There are limits...