Question

what is the range of WiFi​

Answer 1

Answer:

At 2.4 GHz, when there is no interference from other access points and/or clients, 100mW maximum EIRP power and stock 3dBi antennas then maximum range in open space when you have direct line of sight between your devices will be around 1.5 km. This is where you will get signal level of -80 dBm, which is around 4–6 dB SNR above the noise floor and which will give you around 1 Mbps.

To get maximum speed you have to be more than 20+ dB above the noise floor, which will give you the range about 100 m.

On 5 GHz it will be around 700 m and 70 m.

Answer 2

Answer:

A general rule of thumb in home networking says that Wi-Fi routers operating on the traditional 2.4 GHz band reach up to 150 feet (46 m) indoors and 300 feet (92 m) outdoors. Older 802.11a routers that ran on 5 GHz bands reached approximately one-third of these distances.