¥

Value of 1981 Japanese Yen today

¥100 in 1981
¥138.47 in 2024

The inflation rate in Japan between 1981 and today has been 38.47%, which translates into a total increase of ¥38.47. This means that 100 yen in 1981 are equivalent to 138.47 yen in 2021. In other words, the purchasing power of ¥100 in 1981 equals ¥138.47 today. The average annual inflation rate between these periods has been 0.8%.

Inflation timeline in Japan (1981 - 2024)

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 1981-2021 29.96%
Cumulative inflation 1981-today 38.47%
Avg. Annual inflation 1981-2021 0.66%
CPI 1981 78.15
CPI 2021 101.56
CPI 2022-04 (latest official data) 103.33
CPI today 108.21

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 1981 and 2021, use the corresponding CPI values:

Value2021
=Value1981 ×
CPI2021/CPI1981
=¥ 100 ×
101.56/78.15
¥129.96

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 108.21:

Valuetoday
=Value1981 ×
CPItoday/CPI1981
=¥ 100 ×
108.21/78.15
¥138.47

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 40 years between 1981 and 2021 and the average inflation rate was 0.6574%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=¥100 × (1 + 0.006574)40
¥129.96

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1981 ¥1.3 yen in 2021
¥5 yen in 1981 ¥6.5 yen in 2021
¥10 yen in 1981 ¥13 yen in 2021
¥50 yen in 1981 ¥64.98 yen in 2021
¥100 yen in 1981 ¥129.96 yen in 2021
¥500 yen in 1981 ¥649.82 yen in 2021
¥1,000 yen in 1981 ¥1,299.64 yen in 2021
¥5,000 yen in 1981 ¥6,498.21 yen in 2021
¥10,000 yen in 1981 ¥12,996.41 yen in 2021
¥50,000 yen in 1981 ¥64,982.06 yen in 2021
¥100,000 yen in 1981 ¥129,964.11 yen in 2021
¥500,000 yen in 1981 ¥649,820.55 yen in 2021
¥1,000,000 yen in 1981 ¥1,299,641.11 yen in 2021
Cumulative inflation From 1981 38.47%
Avg. annual inflation From 1981 0.8%
CPI 1981 78.15
CPI today 108.21

Value of Yen over time (by year)

Period Value
1981 100
1982 102.75
1983 104.68
1984 107.04
1985 109.22
1986 109.88
1987 110.02
1988 110.74
1989 113.28
1990 116.75
1991 120.57
1992 122.66
1993 124.2
1994 125.06
1995 124.95
1996 125.12
1997 127.25
1998 128.08
1999 127.63
2000 126.75
2001 125.87
2002 124.74
2003 124.42
2004 124.41
2005 124.05
2006 124.36
2007 124.42
2008 126.13
2009 124.45
2010 123.53
2011 123.19
2012 123.14
2013 123.55
2014 126.96
2015 127.97
2016 127.8
2017 128.42
2018 129.69
2019 130.3
2020 130.27
2021 129.96
2022-04 132.23
Today 138.47

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 |

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