Point to point on my fixed gear would be 22.08 miles to work then the 22.08 miles home when I leave. It is in a rather 'hilly' area of Wisconsin so the commute is a little tough. Im geared at 48/18 so it is not horrible on the uphills and I can still spin it out pretty good on the flats and downhills.

Anything larger than 25 or so miles i'd switch to a geared bike in my area. The hills get verrrryyyy long and have some pretty good gradients.

.Chris