How about: 
use Math::BaseCalc;

[download]
..And then... 
my $base_26 = Math::BaseCalc->new(digits=>['A'..'Z']);
print "Enter a value: ";
while (<>) {
  chomp;
  print $base_26->from_base($_)."\n";
  print "Enter a value: ";
}

[download]
CPAN is a beautiful thing. FWIW, there is a bug in your base numbers. In a base-26 set "A" == 0, "B" == 1, etc. TTYL

In reply to Re: Alpha base-26 to base-10... by Anonymous Monk
in thread Alpha base-26 to base-10... by eduardo

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