Value of 1966 Japanese Yen today

¥100 in 1966

¥410.31 in 2018

The inflation rate in Japan between 1966 and today has been 310.31%, which translates into a total increase of ¥310.31. This means that 100 yen in 1966 are equivalent to 410.31 yen in 2018. In other words, the purchasing power of ¥100 in 1966 equals ¥410.31 today. The average annual inflation rate has been 2.7%.

Inflation timeline in Japan (1966-2018)

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 (1966-2018) 307.09%
Total Inflation* 310.31%
Annual inflation avg. (1966-2018) 2.74%
Annual inflation avg.* 2.7%
CPI 1966 24.86
CPI 2018 101.2
CPI today* 102
¥1 in 1966 ¥4.07 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 52 years between 1966 and 2018 and the average inflation rate has been 2.6995%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.03)52 = ¥407.09

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 1966 was 24.86 and the CPI today is 102. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/24.86
= ¥407.09

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1966 ¥4.1 yen today
¥5 yen in 1966 ¥20.52 yen today
¥10 yen in 1966 ¥41.03 yen today
¥50 yen in 1966 ¥205.16 yen today
¥100 yen in 1966 ¥410.31 yen today
¥500 yen in 1966 ¥2,051.57 yen today
¥1,000 yen in 1966 ¥4,103.13 yen today
¥5,000 yen in 1966 ¥20,515.66 yen today
¥10,000 yen in 1966 ¥41,031.32 yen today
¥50,000 yen in 1966 ¥205,156.59 yen today
¥100,000 yen in 1966 ¥410,313.17 yen today
¥500,000 yen in 1966 ¥2,051,565.87 yen today
¥1,000,000 yen in 1966 ¥4,103,131.75 yen today

Value of Yen in time (by year)

Period Value
1966 100
1967 104.41
1968 110.28
1969 114.59
1970 121.94
1971 130.74
1972 137.17
1973 144.82
1974 171.37
1975 207.57
1976 223.66
1977 247.39
1978 259.86
1979 269.92
1980 285.21
1981 305.72
1982 319
1983 325.43
1984 331.07
1985 339.92
1986 344.74
1987 343.54
1988 346.35
1989 349.97
1990 359.22
1991 372.5
1992 382.56
1993 386.98
1994 391
1995 393.42
1996 391.81
1997 394.22
1998 401.46
1999 403.88
2000 399.45
2001 397.84
2002 393.01
2003 391.81
2004 390.2
2005 391
2006 389.39
2007 390.6
2008 393.42
2009 395.03
2010 388.19
2011 386.98
2012 386.18
2013 385.37
2014 391.81
2015 401.06
2016 401.46
2017 402.67
2018 407.09
Today 410.31