Value of 1975 Japanese Yen today

¥100 in 1975

¥197.09 in 2018

The inflation rate in Japan between 1975 and today has been 97.09%, which translates into a total increase of ¥97.09. This means that 100 yen in 1975 are equivalent to 197.09 yen in 2018. In other words, the purchasing power of ¥100 in 1975 equals ¥197.09 today. The average annual inflation rate has been 1.55%.

Inflation timeline in Japan (1975-2018)

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 (1975-2018) 96.12%
Total Inflation* 97.09%
Annual inflation avg. (1975-2018) 1.58%
Annual inflation avg.* 1.55%
CPI 1975 51.6
CPI 2018 101.2
CPI today* 101.7
¥1 in 1975 ¥1.96 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 43 years between 1975 and 2018 and the average inflation rate has been 1.554%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.02)43 = ¥196.12

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 1975 was 51.6 and the CPI today is 101.7. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/51.6
= ¥196.12

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1975 ¥1.97 yen today
¥5 yen in 1975 ¥9.85 yen today
¥10 yen in 1975 ¥19.71 yen today
¥50 yen in 1975 ¥98.55 yen today
¥100 yen in 1975 ¥197.09 yen today
¥500 yen in 1975 ¥985.47 yen today
¥1,000 yen in 1975 ¥1,970.93 yen today
¥5,000 yen in 1975 ¥9,854.67 yen today
¥10,000 yen in 1975 ¥19,709.33 yen today
¥50,000 yen in 1975 ¥98,546.66 yen today
¥100,000 yen in 1975 ¥197,093.32 yen today
¥500,000 yen in 1975 ¥985,466.58 yen today
¥1,000,000 yen in 1975 ¥1,970,933.16 yen today

Value of Yen in time (by year)

Period Value
1975 100
1976 107.75
1977 119.19
1978 125.19
1979 130.04
1980 137.4
1981 147.29
1982 153.68
1983 156.78
1984 159.5
1985 163.76
1986 166.09
1987 165.5
1988 166.86
1989 168.6
1990 173.06
1991 179.46
1992 184.3
1993 186.43
1994 188.37
1995 189.53
1996 188.76
1997 189.92
1998 193.41
1999 194.57
2000 192.44
2001 191.67
2002 189.34
2003 188.76
2004 187.98
2005 188.37
2006 187.6
2007 188.18
2008 189.53
2009 190.31
2010 187.02
2011 186.43
2012 186.05
2013 185.66
2014 188.76
2015 193.22
2016 193.41
2017 193.99
2018 196.12
Today 197.09