¥

Value of 1984 Japanese Yen today

¥100 in 1984
¥123.27 in 2022

The inflation rate in Japan between 1984 and today has been 23.27%, which translates into a total increase of ¥23.27. This means that 100 yen in 1984 are equivalent to 123.27 yen in 2022. In other words, the purchasing power of ¥100 in 1984 equals ¥123.27 today. The average annual inflation rate between these periods has been 0.55%.

Inflation timeline in Japan (1984 - 2022)

The following chart depicts the equivalence of ¥100 due to compound inflation and CPI changes. All values are equivalent in terms of purchasing power, which means that for each year the same goods or services could be bought with the indicated amount of money.

All calculations are performed in the local currency (JPY) and using 6 decimal digits. Results show only up to 2 decimal digits to favour readability. Inflation data is provided by governments and international institutions on a monthly basis. Today's values were extrapolated from the latest 12-month rolling average official data.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation 1984-2021 21.42%
Cumulative inflation 1984-today 23.27%
Avg. Annual inflation 1984-2021 0.53%
CPI 1984 83.64
CPI 2021 101.56
CPI 2022-03 (latest official data) 102.93
CPI today 103.11

How to calculate today's value of money after inflation?

There are several ways to calculate the time value of money. Depending on the data available, results can be obtained by using the Consumer Price Index (CPI) formula or the compound interest formula.

Using the CPI formula

When we have both the start and end years, we can use the following formula:

Valuet =Value0 ×
CPIt/CPI0

To obtain the values equivalent in buying power between 1984 and 2021, use the corresponding CPI values:

Value2021
=Value1984 ×
CPI2021/CPI1984
=¥ 100 ×
101.56/83.64
¥121.42

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 103.11:

Valuetoday
=Value1984 ×
CPItoday/CPI1984
=¥ 100 ×
103.11/83.64
¥123.27

Alternative: Using the compound interest formula

Given that money changes with time as a result of an inflation rate that acts as compound interest, we can use the following formula: FV = PV × (1 + i)n, where:

  • FV: Future Value
  • PV: Present Value
  • i: Interest rate (inflation)
  • n: Number of times the interest is compounded (i.e. # of years)

In this case, the future value represents the final amount obtained after applying the inflation rate to our initial value. In other words, it indicates how much are ¥100 worth today. There are 37 years between 1984 and 2021 and the average inflation rate was 0.526%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=¥100 × (1 + 0.00526)37
¥121.42

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1984 ¥1.21 yen in 2021
¥5 yen in 1984 ¥6.07 yen in 2021
¥10 yen in 1984 ¥12.14 yen in 2021
¥50 yen in 1984 ¥60.71 yen in 2021
¥100 yen in 1984 ¥121.42 yen in 2021
¥500 yen in 1984 ¥607.11 yen in 2021
¥1,000 yen in 1984 ¥1,214.22 yen in 2021
¥5,000 yen in 1984 ¥6,071.1 yen in 2021
¥10,000 yen in 1984 ¥12,142.2 yen in 2021
¥50,000 yen in 1984 ¥60,711 yen in 2021
¥100,000 yen in 1984 ¥121,422 yen in 2021
¥500,000 yen in 1984 ¥607,109.98 yen in 2021
¥1,000,000 yen in 1984 ¥1,214,219.96 yen in 2021
Cumulative inflation From 1984 23.27%
Avg. annual inflation From 1984 0.55%
CPI 1984 83.64
CPI today 103.11

Value of Yen over time (by year)

Period Value
1984 100
1985 102.04
1986 102.66
1987 102.79
1988 103.46
1989 105.83
1990 109.08
1991 112.65
1992 114.6
1993 116.04
1994 116.84
1995 116.74
1996 116.9
1997 118.89
1998 119.66
1999 119.24
2000 118.42
2001 117.6
2002 116.54
2003 116.24
2004 116.23
2005 115.89
2006 116.19
2007 116.24
2008 117.84
2009 116.27
2010 115.41
2011 115.09
2012 115.04
2013 115.43
2014 118.61
2015 119.56
2016 119.4
2017 119.98
2018 121.17
2019 121.74
2020 121.71
2021 121.42
2022-03 123.06
Today 123.27

All available years

Today's value of japanese yen by year:

1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |

Other currencies: