Value of 1974 Japanese Yen today

¥100 in 1974

¥239.44 in 2018

The inflation rate in Japan between 1974 and today has been 139.44%, which translates into a total increase of ¥139.44. This means that 100 yen in 1974 are equivalent to 239.44 yen in 2018. In other words, the purchasing power of ¥100 in 1974 equals ¥239.44 today. The average annual inflation rate has been 1.96%.

Inflation timeline in Japan (1974-2018)

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 (1974-2018) 137.56%
Total Inflation* 139.44%
Annual inflation avg. (1974-2018) 1.99%
Annual inflation avg.* 1.96%
CPI 1974 42.6
CPI 2018 101.2
CPI today* 102
¥1 in 1974 ¥2.38 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 44 years between 1974 and 2018 and the average inflation rate has been 1.9592%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.02)44 = ¥237.56

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 1974 was 42.6 and the CPI today is 102. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/42.6
= ¥237.56

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1974 ¥2.39 yen today
¥5 yen in 1974 ¥11.97 yen today
¥10 yen in 1974 ¥23.94 yen today
¥50 yen in 1974 ¥119.72 yen today
¥100 yen in 1974 ¥239.44 yen today
¥500 yen in 1974 ¥1,197.19 yen today
¥1,000 yen in 1974 ¥2,394.37 yen today
¥5,000 yen in 1974 ¥11,971.86 yen today
¥10,000 yen in 1974 ¥23,943.73 yen today
¥50,000 yen in 1974 ¥119,718.64 yen today
¥100,000 yen in 1974 ¥239,437.29 yen today
¥500,000 yen in 1974 ¥1,197,186.45 yen today
¥1,000,000 yen in 1974 ¥2,394,372.9 yen today

Value of Yen in time (by year)

Period Value
1974 100
1975 121.13
1976 130.52
1977 144.37
1978 151.64
1979 157.51
1980 166.43
1981 178.4
1982 186.15
1983 189.91
1984 193.19
1985 198.36
1986 201.17
1987 200.47
1988 202.11
1989 204.23
1990 209.62
1991 217.37
1992 223.24
1993 225.82
1994 228.17
1995 229.58
1996 228.64
1997 230.05
1998 234.27
1999 235.68
2000 233.1
2001 232.16
2002 229.34
2003 228.64
2004 227.7
2005 228.17
2006 227.23
2007 227.93
2008 229.58
2009 230.52
2010 226.53
2011 225.82
2012 225.35
2013 224.88
2014 228.64
2015 234.04
2016 234.27
2017 234.98
2018 237.56
Today 239.44