Value of 1989 Japanese Yen today

¥100 in 1989

¥116.9 in 2018

The inflation rate in Japan between 1989 and today has been 16.9%, which translates into a total increase of ¥16.9. This means that 100 yen in 1989 are equivalent to 116.9 yen in 2018. In other words, the purchasing power of ¥100 in 1989 equals ¥116.9 today. The average annual inflation rate has been 0.52%.

Inflation timeline in Japan (1989-2018)

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 (1989-2018) 16.32%
Total Inflation* 16.9%
Annual inflation avg. (1989-2018) 0.52%
Annual inflation avg.* 0.52%
CPI 1989 87
CPI 2018 101.2
CPI today* 101.7
¥1 in 1989 ¥1.16 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 29 years between 1989 and 2018 and the average inflation rate has been 0.5218%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = ¥100 * (1 + 0.01)29 = ¥116.32

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 1989 was 87 and the CPI today is 101.7. Therefore,

Final value = Initial value *
CPI final/CPI initial
= ¥100 *
101.2/87
= ¥116.32

Japan inflation - Conversion table

Initial Value Equivalent value
¥1 yen in 1989 ¥1.17 yen today
¥5 yen in 1989 ¥5.84 yen today
¥10 yen in 1989 ¥11.69 yen today
¥50 yen in 1989 ¥58.45 yen today
¥100 yen in 1989 ¥116.9 yen today
¥500 yen in 1989 ¥584.48 yen today
¥1,000 yen in 1989 ¥1,168.97 yen today
¥5,000 yen in 1989 ¥5,844.84 yen today
¥10,000 yen in 1989 ¥11,689.67 yen today
¥50,000 yen in 1989 ¥58,448.36 yen today
¥100,000 yen in 1989 ¥116,896.73 yen today
¥500,000 yen in 1989 ¥584,483.63 yen today
¥1,000,000 yen in 1989 ¥1,168,967.25 yen today

Value of Yen in time (by year)

Period Value
1989 100
1990 102.64
1991 106.44
1992 109.31
1993 110.57
1994 111.72
1995 112.41
1996 111.95
1997 112.64
1998 114.71
1999 115.4
2000 114.14
2001 113.68
2002 112.3
2003 111.95
2004 111.49
2005 111.72
2006 111.26
2007 111.61
2008 112.41
2009 112.87
2010 110.92
2011 110.57
2012 110.34
2013 110.11
2014 111.95
2015 114.6
2016 114.71
2017 115.06
2018 116.32
Today 116.9