¥

Value of 1978 Japanese Yen today

¥100 in 1978
¥155.39 in 2022

The inflation rate in Japan between 1978 and today has been 55.39%, which translates into a total increase of ¥55.39. This means that 100 yen in 1978 are equivalent to 155.39 yen in 2022. In other words, the purchasing power of ¥100 in 1978 equals ¥155.39 today. The average annual inflation rate between these periods has been 1.01%.

Inflation timeline in Japan (1978 - 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 1978-2021 52.46%
Cumulative inflation 1978-today 55.39%
Avg. Annual inflation 1978-2021 0.99%
CPI 1978 66.62
CPI 2021 101.56
CPI 2022-04 (latest official data) 103.33
CPI today 103.51

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 1978 and 2021, use the corresponding CPI values:

Value2021
=Value1978 ×
CPI2021/CPI1978
=¥ 100 ×
101.56/66.62
¥152.46

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 103.51:

Valuetoday
=Value1978 ×
CPItoday/CPI1978
=¥ 100 ×
103.51/66.62
¥155.39

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 43 years between 1978 and 2021 and the average inflation rate was 0.9856%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=¥100 × (1 + 0.009856)43
¥152.46

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1978 ¥1.52 yen in 2021
¥5 yen in 1978 ¥7.62 yen in 2021
¥10 yen in 1978 ¥15.25 yen in 2021
¥50 yen in 1978 ¥76.23 yen in 2021
¥100 yen in 1978 ¥152.46 yen in 2021
¥500 yen in 1978 ¥762.29 yen in 2021
¥1,000 yen in 1978 ¥1,524.58 yen in 2021
¥5,000 yen in 1978 ¥7,622.9 yen in 2021
¥10,000 yen in 1978 ¥15,245.79 yen in 2021
¥50,000 yen in 1978 ¥76,228.96 yen in 2021
¥100,000 yen in 1978 ¥152,457.92 yen in 2021
¥500,000 yen in 1978 ¥762,289.58 yen in 2021
¥1,000,000 yen in 1978 ¥1,524,579.17 yen in 2021
Cumulative inflation From 1978 55.39%
Avg. annual inflation From 1978 1.01%
CPI 1978 66.62
CPI today 103.51

Value of Yen over time (by year)

Period Value
1978 100
1979 103.73
1980 111.79
1981 117.31
1982 120.53
1983 122.8
1984 125.56
1985 128.12
1986 128.9
1987 129.06
1988 129.9
1989 132.88
1990 136.96
1991 141.44
1992 143.89
1993 145.7
1994 146.7
1995 146.57
1996 146.78
1997 149.27
1998 150.24
1999 149.72
2000 148.69
2001 147.66
2002 146.33
2003 145.95
2004 145.94
2005 145.52
2006 145.89
2007 145.95
2008 147.96
2009 145.99
2010 144.91
2011 144.51
2012 144.45
2013 144.93
2014 148.93
2015 150.11
2016 149.92
2017 150.65
2018 152.14
2019 152.85
2020 152.81
2021 152.46
2022-04 155.12
Today 155.39

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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