This service is now on Measuring Worth , where you can ask questions of comparative value covering prices, purchasing power, earnings, GDP, interest rates, exchange rates and other economic variables. The calculators allow you to convert past values into current values (and vice versa).

The Calculators

• What is the Annualized Growth Rate of Various Historical Economic Series?
• What Is the Relative Value? Six Ways to Compare the Worth of a United States Dollar, 1790 - 2007
• What Is the Relative Value? Five Ways to Compare the Worth of a United Kingdom Pound, 1830 - 2007
• Three Ways to Compute the Relative Value of a Chinese Yuan Amount, 1952-2007
• Five Ways to Compute the Relative Value of a Japanese Yen Amount, 1879 - 2007
• Computing 'Real Value' Over Time With a Conversion Between U.K. Pounds and U.S. Dollars, 1830 - 2007
• Purchasing Power of the United States Dollar, 1774 - 2007
• Purchasing Power of the British Pound, 1264 - 2007
• How Much Would Your U.S. Savings Have Grown? 1798 - 2007
• Inflation Rates for the U.S. (1774 to 2006) and United Kingdom (Britain) (1264 to 2007)
• Annualized Growth Rate of the DJA, S&P500 and NASDAQ Between Any Two Dates

Graphs

Data Sets

• The Annual Real and Nominal GDP for the United States, 1790 - 2007
• The Annual Real and Nominal GDP for the United Kingdom, 1800 - 2007
• The Annual Consumer Price Index for the United States, 1774-2007
• What Were the UK Earnings and Prices Then? 1264 - 2007
• The Annual Value of the Consumer Bundle for the United States, 1900 - 2006
• The Annual Nominal GDP and Price Index for the China 1952 - 2007
• The Annual Real and Nominal GDP, Price Indexes and Wage for Japan 1879 - 2007
Daily Closing Values of the Dow Jones Average, May 2, 1885 to Present
• The Price of Gold, 1257 - 2007
• Interest Rate Series for the United Kingdom and the United States, 1790 - 2007
• Exchange Rate Between the United States Dollar and the British Pound, 1791 - 2007
• Exchange Rate Between the United States Dollar and Forty Other Countries, 1913 - 2007