The height of my 34inch is = to my old 27 inch non widescreens. It just has more horizontal realistate so I can see the edges better. It is about as much as I actually used in the past. So for our comment. If you want a specific vertical size then you want to figure out what 21:9 retains that much height. I would usually times whatever you have by 1.26 and you will have the equivocal height in 21:9. For example: Your 30's would need to be 37.8 inch for Ultrawidescreen to have the same vertical footprint on your desk.