Result:¥100 in 2008 → ¥100.03 in 2026
The Japanese Yen has lost 0% its value since 2008
Updated: March 11, 2026¥100 in 2008 is equivalent in purchasing power to about ¥100.03 today, an increase of ¥0.03 over 18 years. The yen had an average inflation rate of 0.00% per year between 2008 and today, producing a cumulative price increase of 0.03%.
This means that today's prices are 1.00 times as high as average prices since 2008, according to the OECD and the World Bank consumer price index for Japan. A yen today only buys 99.970% of what it could buy back then.
The inflation rate in 2008 was 1.38%. The current inflation rate compared to the end of last year is now -0.60%. If this number holds, ¥100 today will be equivalent in buying power to ¥99.40 next year.
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| Cumulative price change | 0.03% |
| Average inflation rate | 0.00% |
|
Converted amount
¥100 base | ¥100.03 |
|
Price difference
¥100 base | ¥0.03 |
| CPI in 2008 | 98.566 |
| CPI in 2026 | 98.593 |
| Inflation in 2008 | 1.38% |
| Inflation in 2026 | -0.60% |
| ¥100 in 2008 | ¥100.03 in 2026 |
Buying power of ¥100 in 2008
This chart shows a calculation of buying power equivalence for ¥100 in 2008 (price index tracking began in 1955).
For example, if you started with ¥100, you would need to end with ¥100.03 in order to "adjust" for inflation (sometimes refered to as "beating inflation").
When ¥100 is equivalent to ¥100.03 over time, that means that the "real value" of a single Japanese yen decreases over time. In other words, a yen will pay for fewer items at the store.
This effect explains how inflation erodes the value of a yen over time. By calculating the value in 2008 dollars, the chart below shows how ¥100 is worth less over 18 years.
According to the OECD and the World Bank, each of these JPY amounts below is equal in terms of what it could buy at the time:
This conversion table shows various other 2008 amounts in today's yen, based on the 0.03% change in prices:
| Initial value | Equivalent value |
|---|---|
| ¥1 yen in 2008 | ¥1.00 yen today |
| ¥5 yen in 2008 | ¥5.00 yen today |
| ¥10 yen in 2008 | ¥10.00 yen today |
| ¥50 yen in 2008 | ¥50.01 yen today |
| ¥100 yen in 2008 | ¥100.03 yen today |
| ¥500 yen in 2008 | ¥500.14 yen today |
| ¥1,000 yen in 2008 | ¥1,000.27 yen today |
| ¥5,000 yen in 2008 | ¥5,001.35 yen today |
| ¥10,000 yen in 2008 | ¥10,002.70 yen today |
| ¥50,000 yen in 2008 | ¥50,013.52 yen today |
| ¥100,000 yen in 2008 | ¥100,027.03 yen today |
| ¥500,000 yen in 2008 | ¥500,135.17 yen today |
| ¥1,000,000 yen in 2008 | ¥1,000,270.34 yen today |
How to calculate inflation rate for ¥100 since 2008
Our calculations use the following inflation rate formula to calculate the change in value between 2008 and today:
CPI todayCPI in 2008
×
2008 JPY value
=
Today's value
Then plug in historical CPI values. The Japanese CPI was 98.56622 in the year 2008 and 98.5928665885014 in 2026:
98.592866588501498.56622
×
¥100
=
¥100.03
¥100 in 2008 has the same "purchasing power" or "buying power" as ¥100.03 in 2026.
To get the total inflation rate for the 18 years between 2008 and 2026, we use the following formula:
CPI in 2026 - CPI in 2008CPI in 2008
×
100
=
Cumulative inflation rate (18 years)
Plugging in the values to this equation, we get:
98.5928665885014 - 98.5662298.56622
×
100
=
0%
Data source & citation
You may use the following MLA citation for this page: “Value of 2008 Japanese Yen today | Japan Inflation Calculator.” Official Inflation Data, Alioth Finance, 1 Apr. 2026, https://www.officialdata.org/japan/inflation/2008.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
in2013dollars.com is a reference website maintained by the Official Data Foundation.
| Cumulative price change | 0.03% |
| Average inflation rate | 0.00% |
|
Converted amount
¥100 base | ¥100.03 |
|
Price difference
¥100 base | ¥0.03 |
| CPI in 2008 | 98.566 |
| CPI in 2026 | 98.593 |
| Inflation in 2008 | 1.38% |
| Inflation in 2026 | -0.60% |
| ¥100 in 2008 | ¥100.03 in 2026 |