FREE ENGINEERING REFERENCE
SSID beacon overhead calculator
This SSID overhead calculator estimates how much channel airtime beacons use as you add networks. Enter the SSIDs per radio, the number of radios sharing the channel, the base beacon size, the beacon interval in TU and the beacon transmit rate, then choose a separate beacon per SSID or one Multiple-BSSID beacon group. It returns beacon airtime on the channel as a percentage, airtime per beacon in µs, beacons per second and the modelled beacon size, so you can see the beacon overhead of a configuration before adding another SSID.
Runs entirely in your browser. No account or subscription required.
Inputs are remembered only on this device.
Quick checks for Wi-Fi planning work
Use these calculators as planning references, then validate a design against the equipment datasheet, site conditions and measured results.
FAQ
Using the Wi-Fi engineer toolbox
Are these Wi-Fi calculators free to use?
Yes. The tools run in your browser and do not require an account or subscription.
Do the tools replace a wireless survey or equipment datasheet?
No. They provide planning checks. Confirm assumptions with current vendor documentation, site conditions and survey measurements.
Where are my calculator inputs stored?
Inputs are remembered only on the device and browser you use.