| LAN | WAN |
| Area covered by LAN is around 10km radius | WAN can cover entire country or globe |
| Transmission speed is high in LAN | Transmission speed is low in WAN |
| LAN setup is comparatively less expensive | Wan set is expensive |
| It uses Ethernet, Wifi technology for communication | It uses optical fiber, satellite technology for communication |
| LAN is set as Private network often, but can be Public as well | WAN is set as public |