Sydney is right at this point it is about how it feels to you. Try these online fit calculators for some piece of mind. (next time before you buy a bike)
http://www.wrenchscience.com/
http://www.competitivecyclist.com/za...LCULATOR_INTRO
You didn't give all the measurements they ask for you you'll have to measure yourself or better yet have someone do it for you. Good luck.