0Item(s)

You have no items in your shopping cart.

Product was successfully added to your shopping cart.

Free Space Path Loss Calculator

A-INFO's Free Space Path Loss Calculator calculates the loss (in dB) between two antennas where the gain, distance and frequency are known.

Bookmark or "Favorite" this page by pressing CTRL + D.

Distance:
Frequency:
Transmitter Gain (dB):
Receiver Gain (dB):

Result:

Free Space Path Loss:

Free Space Path Loss (FSPL) calculations are often used to help predict RF signal strength in an antenna system. Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF communications systems.

Prefix Symbol Value
Tera 'T' 1012
Giga 'G' 109
Mega 'M' 106
kilo 'k' 103
Prefix Symbol Value
pico 'p' 10-12
nano 'n' 10-9
micro 'u' 10-6
milli 'm' 10-3