Originally Posted by TeamSelig
Are treadmills accurate? It seems like I can run forever on one of those, but whenever I attempt to run outside I can't go 1/2 the distance.
Unless it is an old bad tredmill they are pretty accurate. Some people like treadmills others hate them. The difference you may feel could be a result of the treadmill pacing you or the lack of hills. One common problem with running outside is the lack of a true pace.
For example if your goal is to run 5 miles in an hour you can set your pace at that mark and just go. If you have a 5 mile route picked out you likely aren't going to stick to the same pace for the entire run.