Free FSPL Wi-Fi Coverage Calculator

FSPL Wi-Fi Coverage Calculator

FSPL, short of Free-space Path Loss, is the attenuation of radio energy between transmitter and receiver antennas.

Here is the type calculation of Wi-Fi range and signal strength base on the FSPL formula. Our 4G WiFi outdoor routers are outputting 27~30dBm WiFi power on MIMO 5dBi omni WiFi antennas. You can check the typical technically coverage in the open area without barriers.

Outdoor FSPL WiFi Coverage Calculation

dBm to Watt Conversion Table

dBm Watts   dBm Watts   dBm Watts
0
1.0 mW
  16 40 mW   32 1.6 W
1
1.3 mW
  17 50 mW   33 2.0 W
2
1.6 mW
  18 63 mW   34 2.5 W
3
2.0 mW
  19 79 mW   35 3.2 W
4
2.5 mW
  20 100 mW   36 4.0 W
5
3.2 mW
  21 126 mW   37 5.0 W
6 4 mW   22 158 mW   38 6.3 W
7 5 mW   23 200 mW   39 8.0 W
8 6 mW   24 250 mW   40 10 W
9 8 mW   25 316 mW   41 13 W
10 10 mW   26 398 mW   42 16 W
11 13 mW   27 500 mW   43 20 W
12 16 mW   28 630 mW   44 25 W
13 20 mW   29 800 mW   45 32 W
14 25 mW   30 1.0 W   46 40 W
15 32 mW   31 1.3 W   47 50 W

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