# Data on bilateral real exchange rate

Where can I find bilateral real exchange rates? For example per USD?

I can only find real effective exchange rates, but it is an index, not a bilateral rate.

Check out this link from the United States Department of Agriculture.

This data set contains annual and monthly data for exchange rates. It includes both bilateral nominal and real exchange rates for 79 countries, plus the European Union, as well as real trade-weighted exchange rate indexes for many commodities and aggregations. All series are updated quarterly. Data series start at the beginning of 1970 and run to the last available data point.

As pointed out by @luchonacho, real exchange rates here are derived by multiplying the nominal exchange rate by the ratio of the U.S. to local currency Consumer Price Index

• Oh, great database! I was not aware of a compiled database of RER. Sep 13, 2017 at 20:30

The real exchange rate is an index.

For example, the nominal exchange rate between British pounds and US dollars is 0.75 pounds per dollar (as of today; e.g. £20 are roughly \$27). To calculate the real exchange rate, you have to multiply this by the relative prices of these two countries, after which you end up with a dimensionless index. This index tells you the relative value of the same basket of goods in the two countries. In a very idealised world were the law of one price holds, such index is one.

Both the bilateral exchange rate and the effective or multilateral exchange rate are defined in terms of currencies. Not their real counterparts.

• Thanks, but a real effective exchange rate is a number that is close to 100. Sep 13, 2017 at 18:03
• @Zhonger As any index (or variable), it can be rebased. 100 is normally used for simplicity, as it eases the calculation of percentages. It still does not imply the number has a meaning in terms of currency. Sep 13, 2017 at 18:05
• @Zhonger Notice that I am not making this up. This is standard theory. For example, see this. Sep 13, 2017 at 19:52
• thanks for your information. I just want to know where I can get information on bilateral exchange rates without the need to convert it from nominal exchange rates :) Sep 14, 2017 at 20:32