WiFi-7 Channel to Center Frequency Conversion Calculator (802.11be)

This page explains how to convert WiFi-7 channel numbers to their corresponding center frequencies, as defined by the IEEE 802.11be standard. We’ll cover the formulas and provide a handy calculator for quick conversions.

This WiFi-7 channel frequency calculator converts channel number to center frequency based on bandwidth and channel number as inputs.

Introduction to WiFi-7 (802.11be)

IEEE 802.11be EHT (Extremely High Throughput) is designed for demanding applications requiring high throughput and low latency, such as:

• VR (Virtual Reality)
• AR (Augmented Reality)
• Gaming
• Cloud computing

It operates in the 2.4 GHz, 5 GHz, and 6 GHz frequency bands and supports bandwidths of 20 MHz, 40 MHz, 80 MHz, 160 MHz, and even 320 MHz. Key features include:

• 4096 QAM
• MLO (Multi-Link Operation)
• 16 x 16 MIMO
• OFDMA multi-RU allocation to single STA
• Preamble puncturing

Important Notes:

• IEEE 802.11be APs must support 160 MHz bandwidth in the 6 GHz band, 80 MHz in the 5 GHz band, and 20 MHz in the 2.4 GHz band.
• Non-AP STAs must support 80 MHz channel width in 5/6 GHz. 20 MHz STAs can operate in the 2.4 GHz and 5 GHz bands.

WiFi-7 Channel Numbers and Center Frequencies (5 GHz / 6 GHz)

Channel numbers for various bandwidths (20, 40, 80, 160, or 320 MHz) in the 5 GHz and 6 GHz bands are shown in Table 1.

Table 1: Channel Numbers for Different Bandwidths (5 GHz / 6 GHz)

WLAN Calculator - 1 for 5 GHz/6 GHz Bands

NOTE: Enter one Bandwidth value from range [20, 40, 80, 160, 320]

EXAMPLE #1:

• INPUTS: BW = 320 MHz, Channel Number = 31
• OUTPUT: WiFi 7 (802.11be) center frequency = 6105 MHz

WiFi-7 Channel Center Frequency Formula (IEEE 802.11be)

The following formulas are used to calculate the center frequency:

• Formula-1 (5/6 GHz bands): Refer to the image below for the specific formula.
• Formula-2 (2.4 GHz band): See the 2.4 GHz section below.

WiFi 7 Channel Assignments and Center Frequencies

The tables below show the channel numbers and their corresponding center frequencies for different bandwidths:

• 20 MHz Bandwidth:

  

• 40 MHz Bandwidth:

  

• 80 MHz Bandwidth:

  

• 160 MHz Bandwidth:

  

• 320 MHz Bandwidth:

  

WLAN Calculator #2 for 2.4 GHz Band

Table 2 shows channel numbers for 20 MHz bandwidth in the 2.4 GHz WiFi band.

Table 2: WLAN 2.4 GHz Bandwidth Channel Numbers

EXAMPLE #2:

• INPUTS: WiFi 2.4 GHz Channel Number = 10 (Legacy wifi devices)
• OUTPUT: WiFi 2.4 GHz center frequency = 2457 MHz

Don’t forget to check out the WiFi7 802.11be data rate throughput calculator for more information.

References

• IEEE 802.11be TM Draft 1.1 Standard