So, as I mentioned recently, I’m trying to switch to using my bike as a primary vehicle. And one of the reasons people will tell you for doing so is to save money, which always seemed to me to be a bit bunk, since most of the cost of a car is owning it at all and keeping it insured. So, I made a quick little calculator to compare the two on a maintenance and upkeep basis. The calculator asks for your commute schedule as you’ve been doing it by car, and then asks how many of those days you’d like to bike instead. Just punch everything in and it’ll spit out estimates of your cost per mile, per commute, per week, and per year, your savings for the same, and as a bonus can tell you how long it’ll take you to pay yourself back for the bike.
If you want to play with it, you can do so here: http://zedmartinez.com/calculate-your-commute/