FREE ENGINEERING REFERENCE
Wi-Fi RF link budget calculator
This free RF link budget calculator runs in your browser with no account needed. Enter conducted transmit power in dBm or mW, transmit and receive antenna gain, cable and connector losses, frequency in MHz, path distance in metres, any additional path loss and your required receive level. It then shows EIRP, free-space path loss, the predicted receive level and the margin above your requirement, and you can download or print the result.
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.