convert WiFi signal strength (dBm) to distance (meters)

dbm2m.py

#!/usr/bin/env python2

# a simple script for one of my articles - https://cryptolok.blogspot.com/2017/08/practical-wifi-hosts-triangulation-with.html

from math import log10

MHz=raw_input('MHz FREQUENCY (2417, 5200, ...) : ')
MHz=int(MHz)

dBm=raw_input('dBm TRANSMITTER POWER (23, 63, ...) : ')
dBm=int(dBm)

FSPL = 27.55
# Free-Space Path Loss adapted avarage constant for home WiFI routers and following units

m = 10 ** (( FSPL - (20 * log10(MHz)) + dBm ) / 20 )
m=round(m,2)

print 'DISTANCE : ',m,'m'

Which language did you use

The python programming language was used for this.