Value of 1971 Japanese Yen today

¥100 in 1971

¥312.92 in 2018

The inflation rate in Japan between 1971 and today has been 212.92%, which translates into a total increase of ¥212.92. This means that 100 yen in 1971 are equivalent to 312.92 yen in 2018. In other words, the purchasing power of ¥100 in 1971 equals ¥312.92 today. The average annual inflation rate has been 2.41%.

Inflation timeline in Japan (1971-2018)

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 (1971-2018) 211.38%
Total Inflation* 212.92%
Annual inflation avg. (1971-2018) 2.45%
Annual inflation avg.* 2.41%
CPI 1971 32.5
CPI 2018 101.2
CPI today* 101.7
¥1 in 1971 ¥3.11 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 47 years between 1971 and 2018 and the average inflation rate has been 2.4051%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.02)47 = ¥311.38

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 1971 was 32.5 and the CPI today is 101.7. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/32.5
= ¥311.38

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1971 ¥3.13 yen today
¥5 yen in 1971 ¥15.65 yen today
¥10 yen in 1971 ¥31.29 yen today
¥50 yen in 1971 ¥156.46 yen today
¥100 yen in 1971 ¥312.92 yen today
¥500 yen in 1971 ¥1,564.62 yen today
¥1,000 yen in 1971 ¥3,129.24 yen today
¥5,000 yen in 1971 ¥15,646.18 yen today
¥10,000 yen in 1971 ¥31,292.35 yen today
¥50,000 yen in 1971 ¥156,461.77 yen today
¥100,000 yen in 1971 ¥312,923.54 yen today
¥500,000 yen in 1971 ¥1,564,617.71 yen today
¥1,000,000 yen in 1971 ¥3,129,235.41 yen today

Value of Yen in time (by year)

Period Value
1971 100
1972 104.92
1973 110.77
1974 131.08
1975 158.77
1976 171.08
1977 189.23
1978 198.77
1979 206.46
1980 218.15
1981 233.85
1982 244
1983 248.92
1984 253.23
1985 260
1986 263.69
1987 262.77
1988 264.92
1989 267.69
1990 274.77
1991 284.92
1992 292.62
1993 296
1994 299.08
1995 300.92
1996 299.69
1997 301.54
1998 307.08
1999 308.92
2000 305.54
2001 304.31
2002 300.62
2003 299.69
2004 298.46
2005 299.08
2006 297.85
2007 298.77
2008 300.92
2009 302.15
2010 296.92
2011 296
2012 295.38
2013 294.77
2014 299.69
2015 306.77
2016 307.08
2017 308
2018 311.38
Today 312.92