Currently MPH is not possible on your display. For me, that isn't a number I really use as most runners seem to prefer (myself included) minutes per mile. When you run 6 miles per hour, that is 10 minutes per mile. Tells me in one hour, I will run 6 miles (if I can sustain it!). I think minutes per mile is used more as it is more sensitive. 6.0 MPH is 10 minutes per mile, 6.1 is 9 minutes, 50 seconds per mile. Would be tough to measuer 6.05 MPH if I wanted something in between.
If you want a converter, there is one here.
If you really want them to add it as an option, I recommend you suggest it at the Feature Request board. I would reccomend you vote for this post - more votes mean they work on it sooner.
Scott | Aviano Italy
Force, One, Charge, Charge HR, Surge - iOS
Take a look at the Fitbit help site for further assistance and information.
