Value of 1979 Japanese Yen today

¥100 in 1979

¥152.01 in 2018

The inflation rate in Japan between 1979 and today has been 52.01%, which translates into a total increase of ¥52.01. This means that 100 yen in 1979 are equivalent to 152.01 yen in 2018. In other words, the purchasing power of ¥100 in 1979 equals ¥152.01 today. The average annual inflation rate has been 1.05%.

Inflation timeline in Japan (1979-2018)

The following chart ilustrates the equivalence of ¥100 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchashing 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 obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1979-2018) 50.82%
Total Inflation* 52.01%
Annual inflation avg. (1979-2018) 1.06%
Annual inflation avg.* 1.05%
CPI 1979 67.1
CPI 2018 101.2
CPI today* 102
¥1 in 1979 ¥1.51 in 2018

* Values extrapolated from the last official data to obtain today's values.

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 compound interest formula or the Consumer Price Index (CPI) formula.

Using the compound interest formula

Given that money changes in time as a result of an inflation rate that acts as a compound interest, the following formula can be used: 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 39 years between 1979 and 2018 and the average inflation rate has been 1.0525%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.01)39 = ¥150.82

Using the CPI formula

When the CPI for both start and end years is known, the following formula can be used:

Final value = Initial value *
CPI final/CPI initial

In this case, the CPI in 1979 was 67.1 and the CPI today is 102. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/67.1
= ¥150.82

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1979 ¥1.52 yen today
¥5 yen in 1979 ¥7.6 yen today
¥10 yen in 1979 ¥15.2 yen today
¥50 yen in 1979 ¥76.01 yen today
¥100 yen in 1979 ¥152.01 yen today
¥500 yen in 1979 ¥760.06 yen today
¥1,000 yen in 1979 ¥1,520.12 yen today
¥5,000 yen in 1979 ¥7,600.62 yen today
¥10,000 yen in 1979 ¥15,201.23 yen today
¥50,000 yen in 1979 ¥76,006.17 yen today
¥100,000 yen in 1979 ¥152,012.35 yen today
¥500,000 yen in 1979 ¥760,061.74 yen today
¥1,000,000 yen in 1979 ¥1,520,123.48 yen today

Value of Yen in time (by year)

Period Value
1979 100
1980 105.66
1981 113.26
1982 118.18
1983 120.57
1984 122.65
1985 125.93
1986 127.72
1987 127.27
1988 128.32
1989 129.66
1990 133.08
1991 138
1992 141.73
1993 143.37
1994 144.86
1995 145.75
1996 145.16
1997 146.05
1998 148.73
1999 149.63
2000 147.99
2001 147.39
2002 145.6
2003 145.16
2004 144.56
2005 144.86
2006 144.26
2007 144.71
2008 145.75
2009 146.35
2010 143.82
2011 143.37
2012 143.07
2013 142.77
2014 145.16
2015 148.58
2016 148.73
2017 149.18
2018 150.82
Today 152.01