Anyone who wants to know their Mac address and doesn't have any other way of finding out what the mac address is to any of their devices, can log onto their router and look at the devices connected to their router, just make sure your device is powered up and connected to your network. Some will show up as a wired device, others will show up as a wireless device but all will show the name of the device and the mac address of that device as well as the IP address it was provided with.