How did this one get by me? I used Google maps today and now there's a Distance Measurement Tool that is typically Google -easy to use, and fun. You click on a link that says "I'm feeling geeky", and then you can measure distances on a map in meters, miles, yards, feet, inches, cubits, furlongs, light years, parsecs, football fields, Olympic swimming pools, and much more! For instance, the distance from Barco to the swimming pool in Bellefield Hall is 14 Olympic swimming pools.
It doesn't take topography into account - yet. Maybe that's coming, so we can measure the walk from Barco to, say, the medical library realistically (taking the hill into account somehow).