A method and apparatus for wireless network selection by a wireless mobile device is disclosed. In one embodiment, network performance metrics related to the wireless networks to be considered can be evaluated. The network performance metrics can be weighted and a related ranking metric can be determined. The ranking metric can be used to select a wireless network. In one embodiment, network performance metrics can include a round trip time, which describes a round trip data transit time between the wireless mobile device to a particular network device, and a power metric describing the amount of power needed to transfer an amount of data.