EDIT: I was unaware of a way more extensive post with KmH and swim speed included also at http://forums.ddo.com/showthread.php?t=232590
Some Speed comparisons to give you an idea of speed differences:
Base walk speed is roughly 1066.5uH (non barb/monk)
Run speed of lvl 18 monk with pendant + sprint 2.3KuH
Monk max speed 3.1 KuH
In the search to the best and fastest character out there it may be useful to know what speed your character has so you can compare this in a practical way rather then what stats on equipment say (due to these numbers not always being correct).
You need to know distance + time.
Distance can be found by typing /loc in chat, it will show LX and LY coordinates, make sure you start at the beginning of a unit and end at the end of a unit.
Time is easily measured with a stopwatch. For a proper result you start before the actual starting point and finish behind the actual finishing point so you are at full speed when running through these points. The more unit the track contains the better the result, repeat it a few times so you are sure your time is correct.
From there on it's easy to calculate by reducing time to 1 second and then expand it into 1 hour, here an example of that:
10 Units / 24.6 = 0.406 units per second x 3600 = 1463.4 Units per Hour or 1.46KuH
Offcourse it's useful to know how big a coördination unit is. So I made this picture to display the size of 1 unit to give you an idea.