See: Geo::Distance::XS. 
#!/usr/bin/perl

use strict;
use autodie;
use warnings;
use Geo::Distance::XS; 

my $geo = Geo::Distance->new; 
my $distance = $geo->distance(mile => $lon1, $lat1 => $lon2, $lat2);
print $distance;

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In reply to Re: Finding distance between cities or countries Perl module by Khen1950fx
in thread Finding distance between cities or countries Perl module by maheshkumar

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