Using the most direct routes, it's 8 miles in and 9 miles home (I take a detour in the afternoon to avoid traffic). My most-traveled route is 10 miles in and 14 miles home. The terrain around here is very hilly so my commute time varies a lot depending on the route. Generally, it's mostly downhill riding in (easy to hit 40 on one of the hills) and mostly uphill going home.