Value of 1980 Indonesian Ruphias today

Rp100 in 1980

Rp2,900.1 in 2018

The inflation rate in Indonesia between 1980 and today has been 2,800.1%, which translates into a total increase of Rp2,800.1. This means that 100 ruphias in 1980 are equivalent to 2,900.1 ruphias in 2018. In other words, the purchasing power of Rp100 in 1980 equals Rp2,900.1 today. The average annual inflation rate has been 9.02%.

Inflation timeline in Indonesia (1980-2018)

The following chart ilustrates the equivalence of Rp100 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 (IDR) 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 (1980-2018) 2,736.98%
Total Inflation* 2,800.1%
Annual inflation avg. (1980-2018) 9.2%
Annual inflation avg.* 9.02%
CPI 1980 3.84
CPI 2018 109.02
CPI today* 111.44
Rp1 in 1980 Rp28.37 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 Rp100 worth today. There are 38 years between 1980 and 2018 and the average inflation rate has been 9.0179%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = Rp100 * (1 + 0.09)38 = Rp2,836.98

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 1980 was 3.84 and the CPI today is 111.44. Therefore,

Final value = Initial value *
CPI final/CPI initial
= Rp100 *
109.02/3.84
= Rp2,836.98

Indonesia inflation - Conversion table

Initial Value Equivalent value
Rp1 ruphia in 1980 Rp29 ruphias today
Rp5 ruphias in 1980 Rp145.01 ruphias today
Rp10 ruphias in 1980 Rp290.01 ruphias today
Rp50 ruphias in 1980 Rp1,450.05 ruphias today
Rp100 ruphias in 1980 Rp2,900.1 ruphias today
Rp500 ruphias in 1980 Rp14,500.5 ruphias today
Rp1,000 ruphias in 1980 Rp29,001 ruphias today
Rp5,000 ruphias in 1980 Rp145,005.01 ruphias today
Rp10,000 ruphias in 1980 Rp290,010.01 ruphias today
Rp50,000 ruphias in 1980 Rp1,450,050.06 ruphias today
Rp100,000 ruphias in 1980 Rp2,900,100.13 ruphias today
Rp500,000 ruphias in 1980 Rp14,500,500.64 ruphias today
Rp1,000,000 ruphias in 1980 Rp29,001,001.28 ruphias today

Value of Ruphia in time (by year)

Period Value
1980 100
1981 117.07
1982 125.69
1983 138.21
1984 154.8
1985 168.78
1986 176.26
1987 192.36
1988 210.24
1989 221.95
1990 235.45
1991 258.86
1992 284.72
1993 299.02
1994 329.43
1995 361.3
1996 393.66
1997 417.4
1998 460.49
1999 817.89
2000 833.66
2001 911.54
2002 1,025.85
2003 1,127.64
2004 1,185.85
2005 1,262.6
2006 1,478.21
2007 1,575.77
2008 1,679.51
2009 1,851.38
2010 1,902.93
2011 2,035.28
2012 2,112.36
2013 2,203.09
2014 2,373.23
2015 2,571.61
2016 2,657.83
2017 2,738.22
2018 2,836.98
Today 2,900.1