What is a good time for a mile run??

usually a pretty good mile time for a girl is around 7 minutes give or take... but this depends on how old you are and what your running for. if its just to get into shape then 7 minutes and even a little more is just fine. now if your running competitively like for high school or something... then your time is going to have to be a bit faster probably down in the 6 minute range. for two miles it would be around 16 minutes give or take and three miles around 25 or 26 minutes.