Value of 1971 Japanese Yen today

¥21,000,000,000 in 1971

¥65,277,196,480.94 today

The inflation rate in Japan between 1971 and today has been 210.84%, which translates into a total increase of ¥44,277,196,480.94. This means that 21,000,000,000 yen in 1971 are equivalent to 65,277,196,480.94 yen in 2021. In other words, the purchasing power of ¥21,000,000,000 in 1971 equals ¥65,277,196,480.94 today. The average annual inflation rate has been 2.25%.

Inflation timeline in Japan (1971-2022)

The following chart depicts the equivalence of ¥21,000,000,000 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchasing 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 (1971-2021) 211.08%
Total Inflation* 210.84%
Annual inflation avg. (1971-2021) 2.3%
Annual inflation avg.* 2.25%
CPI 1971 32.5
CPI 2021 101.1
CPI today* 101.02
¥1 in 1971 ¥3.11 in 2021

* 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 with 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 ¥21,000,000,000 worth today. There are 50 years between 1971 and 2021 and the average inflation rate has been 2.2487%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥21000000000 * (1 + 0.02)50 = ¥65,326,153,846.15

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 101.02. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥21,000,000,000 *
101.1/32.5
= ¥65,326,153,846.15

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1971 ¥3.11 yen today
¥5 yen in 1971 ¥15.54 yen today
¥10 yen in 1971 ¥31.08 yen today
¥50 yen in 1971 ¥155.42 yen today
¥100 yen in 1971 ¥310.84 yen today
¥500 yen in 1971 ¥1,554.22 yen today
¥1,000 yen in 1971 ¥3,108.44 yen today
¥5,000 yen in 1971 ¥15,542.19 yen today
¥10,000 yen in 1971 ¥31,084.38 yen today
¥50,000 yen in 1971 ¥155,421.9 yen today
¥100,000 yen in 1971 ¥310,843.79 yen today
¥500,000 yen in 1971 ¥1,554,218.96 yen today
¥1,000,000 yen in 1971 ¥3,108,437.93 yen today

Value of Yen over time (by year)

Period Value
1971 21,000,000,000
1972 22,033,846,153.85
1973 23,261,538,461.54
1974 27,526,153,846.15
1975 33,341,538,461.54
1976 35,926,153,846.15
1977 39,738,461,538.46
1978 41,741,538,461.54
1979 43,356,923,076.92
1980 45,812,307,692.31
1981 49,107,692,307.69
1982 51,240,000,000
1983 52,273,846,153.85
1984 53,178,461,538.46
1985 54,600,000,000
1986 55,375,384,615.38
1987 55,181,538,461.54
1988 55,633,846,153.85
1989 56,215,384,615.38
1990 57,701,538,461.54
1991 59,833,846,153.85
1992 61,449,230,769.23
1993 62,160,000,000
1994 62,806,153,846.15
1995 63,193,846,153.85
1996 62,935,384,615.38
1997 63,323,076,923.08
1998 64,486,153,846.15
1999 64,873,846,153.85
2000 64,163,076,923.08
2001 63,904,615,384.62
2002 63,129,230,769.23
2003 62,935,384,615.38
2004 62,676,923,076.92
2005 62,806,153,846.15
2006 62,547,692,307.69
2007 62,741,538,461.54
2008 63,193,846,153.85
2009 63,452,307,692.31
2010 62,353,846,153.85
2011 62,160,000,000
2012 62,030,769,230.77
2013 61,901,538,461.54
2014 62,935,384,615.38
2015 64,421,538,461.54
2016 64,486,153,846.15
2017 64,680,000,000
2018 65,390,769,230.77
2019 65,584,615,384.62
2020 66,101,538,461.54
2021 65,326,153,846.15
Today 65,277,196,480.94