Wi-Fi Channel Map: 2.4, 5 and 6 GHz

About this tool

Wi-Fi channels are named by numbers that stand for centre frequencies. This map shows every channel in the 2.4, 5 and 6 GHz bands, with its number, centre frequency and edges, and how 20 MHz channels bond into 40, 80, 160 and 320 MHz channels. Switch between all channels and the rules for the United States, the European Union, the United Kingdom, Thailand, Japan and China to see which channels are allowed, which need DFS, how much power each allows, and how many separate channels each width leaves.

What you'll learn

• How channel numbers map to centre frequencies in each band
• How 20 MHz channels bond into 40, 80, 160 and 320 MHz channels, and how those are numbered
• Which 5 GHz channels need DFS, and where the UNII sub-bands are
• How many non-overlapping channels each width leaves, and the EIRP and PSD limits, in the US, EU, UK, Thailand, Japan and China

Common questions

What frequency is Wi-Fi channel 36?
5180 MHz. In 5 GHz, the centre frequency is 5000 + 5 × the channel number, and channel 36 is the first 20 MHz channel of UNII-1.

Why are 1, 6 and 11 the usual 2.4 GHz channels?
Channel numbers are only 5 MHz apart but channels are 20–22 MHz wide, so neighbouring channels overlap. Channels 1, 6 and 11 are far enough apart not to.

What is the maximum Wi-Fi power in 6 GHz?
It depends on the country and device type. In the US a low-power indoor AP may use 5 dBm/MHz up to 30 dBm EIRP, so a 20 MHz channel gets about 18 dBm and a 320 MHz channel 30 dBm. The EU and Japan allow 23 dBm (200 mW) indoors, and the UK and Thailand 24 dBm (250 mW).

Which 6 GHz channels can be used in Thailand, Japan, the UK and the EU?
Channels 1 to 93, the lower 500 MHz of the band up to 6425 MHz. The US allows the whole band, channels 1 to 233, and the UK decided in 2026 to add 6425–6585 MHz. China has allocated 6 GHz to mobile networks, so there is no 6 GHz Wi-Fi there.