Result:¥100 in 2015 → ¥98.59 in 2026
Value of ¥100 from 2015 to 2026
Updated: March 11, 2026¥100 in 2015 is equivalent in purchasing power to about ¥98.59 today, a difference of ¥-1.41 over 11 years. The yen had an average deflation rate of -0.13% per year since 2015, producing a cumulative price change of -1.41%.
This means that today's prices are 1.41% lower than average prices since 2015, according to the OECD and the World Bank consumer price index for Japan. A yen today buys 101.430% of what it could buy back then.
The inflation rate in 2015 was 0.80%. 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.
⌃
| Cumulative price change | -1.41% |
| Average inflation rate | -0.13% |
|
Converted amount
¥100 base | ¥98.59 |
|
Price difference
¥100 base | ¥-1.41 |
| CPI in 2015 | 100.000 |
| CPI in 2026 | 98.593 |
| Inflation in 2015 | 0.80% |
| Inflation in 2026 | -0.60% |
| ¥100 in 2015 | ¥98.59 in 2026 |
Buying power of ¥100 in 2015
This chart shows a calculation of buying power equivalence for ¥100 in 2015 (price index tracking began in 1955).
For example, if you started with ¥100, you would need to end with ¥98.59 in order to "adjust" for inflation (sometimes refered to as "beating inflation").
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 2015 amounts in today's yen, based on the -1.41% change in prices:
| Initial value | Equivalent value |
|---|---|
| ¥1 yen in 2015 | ¥0.99 yen today |
| ¥5 yen in 2015 | ¥4.93 yen today |
| ¥10 yen in 2015 | ¥9.86 yen today |
| ¥50 yen in 2015 | ¥49.30 yen today |
| ¥100 yen in 2015 | ¥98.59 yen today |
| ¥500 yen in 2015 | ¥492.96 yen today |
| ¥1,000 yen in 2015 | ¥985.93 yen today |
| ¥5,000 yen in 2015 | ¥4,929.64 yen today |
| ¥10,000 yen in 2015 | ¥9,859.29 yen today |
| ¥50,000 yen in 2015 | ¥49,296.43 yen today |
| ¥100,000 yen in 2015 | ¥98,592.87 yen today |
| ¥500,000 yen in 2015 | ¥492,964.33 yen today |
| ¥1,000,000 yen in 2015 | ¥985,928.67 yen today |
How to calculate inflation rate for ¥100 since 2015
Our calculations use the following inflation rate formula to calculate the change in value between 2015 and today:
CPI todayCPI in 2015
×
2015 JPY value
=
Today's value
Then plug in historical CPI values. The Japanese CPI was 100 in the year 2015 and 98.5928665885014 in 2026:
98.5928665885014100
×
¥100
=
¥98.59
¥100 in 2015 has the same "purchasing power" or "buying power" as ¥98.59 in 2026.
To get the total inflation rate for the 11 years between 2015 and 2026, we use the following formula:
CPI in 2026 - CPI in 2015CPI in 2015
×
100
=
Cumulative inflation rate (11 years)
Plugging in the values to this equation, we get:
98.5928665885014 - 100100
×
100
=
-1%
Data source & citation
You may use the following MLA citation for this page: “¥100 in 2015 → 2026 | Japan Inflation Calculator.” Official Inflation Data, Alioth Finance, 4 Apr. 2026, https://www.officialdata.org/japan/inflation/2015?amount=100.
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 | -1.41% |
| Average inflation rate | -0.13% |
|
Converted amount
¥100 base | ¥98.59 |
|
Price difference
¥100 base | ¥-1.41 |
| CPI in 2015 | 100.000 |
| CPI in 2026 | 98.593 |
| Inflation in 2015 | 0.80% |
| Inflation in 2026 | -0.60% |
| ¥100 in 2015 | ¥98.59 in 2026 |