Google Calculator can convert one currency to another at today’s exchange rates, but often I’ll want to convert one currency to itself at a different time.
For example, what would $1,000 in 1930 be worth in today’s dollars?
Is there a Web app to do this?
Slap it into WolframAlpha (although I still dislike the guess-the-syntax game)
Here is what you can use.
compute the current value of a historical quantity of money
$1000 (1930 dollars)
compute historical equivalent value of today’s money
1000 current dollars in 1930
convert one historical quantity of money to another
$1000 1930 dollars in 1975
$ 12952.10(2010 US dollars)
Also gives the purchasing power.