Dear John, Here are three web sites that might help with your quest: Ancient British pounds(years1270-1970) to modern British Pounds (2005) http://measuringworth.com/calculators/ukcompare/ http://www.nationalarchives.gov.uk/currency/ http://privatewww.essex.ac.uk/~alan/family/N-Money.html Converting modern pounds to modern dollars varies on a daily basis. http://en.wikipedia.org/wiki/Australian_dollar This page talks has a section explaining what happened when the Australian money was "fixed" relative to other countries and then when it was "floated" Happy hunting, Tony Moore (Castle Hill, NSW) @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ On 12 Dec 2011 at 11:45, John Cowie wrote: From: "John Cowie" <[email protected]> To: <[email protected]> Subject: Comparative valuesA > Does anybody know of a website, or formula, which gives the comparative > values of pounds & dollars? > > I am trying to work out what the dollar value of the 1860s pound would be > today. > > John Cowie