Historical Currency Converter: Old Money & Rates Since 1999
Historical Currency Converter
$10,000 converted to EUR: January 2000 €9,864.85, October 2026 €8,915.52, -€949.33 (-9.62%)
Result
- USD → EUR
- January 2000 → October 2026
Exchange rate
In this period
Daily record since 1999
October 2026 is the average of the rates up to October 20, 2026. ECB reference rates, monthly averages. Banks and card providers add a margin.
Average rate per year USD/EUR
Value over time
About this historical currency converter
This historical currency converter answers two questions that a normal currency converter cannot. The first tab compares an amount between two months on the official ECB exchange rates since January 1999: what $10,000 was worth in euros in January 2000 and what it is worth now, with the change, the yearly change and the highest and lowest rate in between. The second tab converts the national currencies the euro replaced, such as the Deutsche Mark, the French franc and the Dutch guilder, at their fixed conversion rates, and then adds the inflation since that year, so you see both the plain euro amount and what it buys today. Travelers, people checking an old invoice or salary, and investors who held foreign assets use it to see how much a currency move or inflation changed the value of their money.
How the exchange rate and old-currency math works
Exchange rate tab: the value in month M is the amount times the rate of that month. The ECB publishes every rate per 1 euro, so a pair without the euro is calculated through it: dollars to pounds = GBP per euro / USD per euro. $10,000 in January 2000 at 0.9865 euro per dollar was €9,864.85; in December 2025 at 0.8541 it is €8,540.66, a change of -13.42%. Spread over 25 years and 11 months that is -0.55% a year: (8,540.66 / 9,864.85)^(12 / 311) - 1. Old currency tab: euros = old amount / fixed rate, so 1,000 DM / 1.95583 = €511.29. The value today multiplies that by the price index of the target year divided by the index of the starting year: €511.29 × 2.0422 = €1,044.16 in 2025 euros, because German consumer prices rose 104.22% between 1990 and 2025, or 2.06% a year.
Practical tips and supporting tools
What this historical currency converter does
The Exchange rate then vs now tab takes two currencies, an amount and two months. It shows the amount in the second currency at the start and at the end, the rates in both months, the change in percent and per year, and the highest and lowest monthly average in the period. When one of the two currencies is the euro, it also shows the record daily rate since 1999. A chart follows the value month by month and a table lists the average rate of every calendar year. Pick a To month before the From month and it calculates back in time, or choose Today's rate under Compare for the latest ECB rate next to the rate 1, 5 and 10 years ago. The Old currency to euro tab covers the 12 currencies of the first euro countries: you enter an amount and a year, and it returns the euros at the fixed rate and what they are worth in the target year after inflation, with a table for 1 to 10,000 units. It also works the other way, from a euro amount to the old currency.
Worked example
You moved $10,000 into euros in January 2000. At the monthly average of 0.9865 euro per dollar you received €9,864.85. In December 2025 the same $10,000 bought only €8,540.66 at 0.8541, so the dollar lost 13.42% against the euro, or 0.55% a year. In between the dollar peaked at 1.1721 euro in June 2001 (monthly average) and fell to 0.6341 in July 2008. Second example: 1,000 Deutsche Mark in 1990 converts to €511.29 at the fixed rate of 1.95583, but German prices rose 104.22% up to 2025, so the same purchasing power in 2025 is €1,044.16.
Where the numbers come from
Exchange rates are the euro reference rates of the European Central Bank, published every working day since 4 January 1999 for about 30 currencies. The converter uses the average of the daily rates in each month, so one unusual day does not decide the result, and it refreshes the data every month. Only Today's rate uses the latest daily rate. The fixed rates of the old currencies were set by the EU Council on 31 December 1998 (for Greece in 2000) and never change. Inflation comes from the World Bank series of national consumer price indices, annual averages from 1960 to 2025, one index per country: the guilder uses Dutch prices, the franc French prices and the mark German prices.
Fixed rate versus purchasing power
The fixed rate only tells you how many euros an old banknote was exchanged for: 100 DM always becomes €51.13, whether it was earned in 1960 or in 2001. It ignores what that money could buy. A salary of 1,000 DM in 1990 paid for much more than €511.29 does today, because prices have roughly doubled since then. That is why the converter shows two numbers: the plain conversion, which is what a bank would pay out, and the value in euros of the target year, which is what you need to compare an old price, rent or salary with today.
Pairs without the euro
The ECB quotes every currency against the euro, so the converter derives other pairs through it. In a month where one euro buys 1.10 dollars and 0.85 pounds, one dollar equals 0.85 / 1.10 = 0.7727 pounds. This is the standard way cross rates are built and it matches market rates closely for monthly averages. The record daily rate is only shown for pairs with the euro on one side, because the daily extremes of two different currencies do not combine into the extreme of their cross rate.
How to use it in four steps
- Pick the tab: an exchange rate between two months, or an old euro currency.
- Choose the currencies and enter the amount as it was paid or written.
- Set the months or years you want to compare, or choose Today's rate; the latest month and year are the default end point.
- Read the result, then use the chart and the table to see when the biggest moves happened.
When this converter is most useful
- Foreign savings or investments: see how much of a gain or loss came from the currency alone.
- Old documents: put a price, rent or salary from a guilder or franc era into today's euros.
- Inheritances and old banknotes: check what a sum in marks or schillings is worth in euros.
- Accounting and reports: look up the yearly average rate of a currency pair.
What this converter does not do
- It does not give the rate of one specific past day: past rates are monthly averages, plus the daily record against the euro.
- It does not include the margin of banks, card providers or exchange offices, which is usually 1% to 5%.
- It does not predict future exchange rates; past moves say nothing certain about the next ones.
- Purchasing power is an average for the whole country, so a specific product can have risen faster or slower.
Supporting calculators
- Inflation in one currency: use the Inflation Calculator to compare the value of dollars, pounds or euros between two years.
- Return after inflation: use the Real Rate of Return Calculator to see what a return is worth once inflation is taken out.
- Gold and silver as a store of value: use the Metals Investment Calculator to see what precious metals returned over the same years.