Value of 1973 Japanese Yen today

¥100 in 1973

¥283.33 in 2018

The inflation rate in Japan between 1973 and today has been 183.33%, which translates into a total increase of ¥183.33. This means that 100 yen in 1973 are equivalent to 283.33 yen in 2018. In other words, the purchasing power of ¥100 in 1973 equals ¥283.33 today. The average annual inflation rate has been 2.29%.

Inflation timeline in Japan (1973-2018)

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 (1973-2018) 181.11%
Total Inflation* 183.33%
Annual inflation avg. (1973-2018) 2.32%
Annual inflation avg.* 2.29%
CPI 1973 36
CPI 2018 101.2
CPI today* 102
¥1 in 1973 ¥2.81 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 45 years between 1973 and 2018 and the average inflation rate has been 2.2899%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.02)45 = ¥281.11

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 1973 was 36 and the CPI today is 102. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/36
= ¥281.11

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1973 ¥2.83 yen today
¥5 yen in 1973 ¥14.17 yen today
¥10 yen in 1973 ¥28.33 yen today
¥50 yen in 1973 ¥141.67 yen today
¥100 yen in 1973 ¥283.33 yen today
¥500 yen in 1973 ¥1,416.67 yen today
¥1,000 yen in 1973 ¥2,833.34 yen today
¥5,000 yen in 1973 ¥14,166.71 yen today
¥10,000 yen in 1973 ¥28,333.41 yen today
¥50,000 yen in 1973 ¥141,667.06 yen today
¥100,000 yen in 1973 ¥283,334.13 yen today
¥500,000 yen in 1973 ¥1,416,670.63 yen today
¥1,000,000 yen in 1973 ¥2,833,341.26 yen today

Value of Yen in time (by year)

Period Value
1973 100
1974 118.33
1975 143.33
1976 154.44
1977 170.83
1978 179.44
1979 186.39
1980 196.94
1981 211.11
1982 220.28
1983 224.72
1984 228.61
1985 234.72
1986 238.06
1987 237.22
1988 239.17
1989 241.67
1990 248.06
1991 257.22
1992 264.17
1993 267.22
1994 270
1995 271.67
1996 270.56
1997 272.22
1998 277.22
1999 278.89
2000 275.83
2001 274.72
2002 271.39
2003 270.56
2004 269.44
2005 270
2006 268.89
2007 269.72
2008 271.67
2009 272.78
2010 268.06
2011 267.22
2012 266.67
2013 266.11
2014 270.56
2015 276.94
2016 277.22
2017 278.06
2018 281.11
Today 283.33