Friis Antenna Path Loss Calculator

Friis Antenna Path Loss Calculator

Calculate the free-space path loss in dB using the Friis equation.

Enter Parameters

e.g., 2400 MHz (for 2.4 GHz)

e.g., 1 km

Path Loss Formula: $$ \text{FSPL (dB)} = 20\log_{10}(d) + 20\log_{10}(f) + 32.45 $$
(with \(d\) in km and \(f\) in MHz)