Value of 1971 Indonesian Ruphias today

Inflation timeline in Indonesia (1971-2018)

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 (1971-2018)	12,101%
Total Inflation*	12,372.46%
Annual inflation avg. (1971-2018)	10.76%
Annual inflation avg.*	10.58%
CPI 1971	0.89
CPI 2018	109.02
CPI today*	111.44
Rp1 in 1971	Rp122.01 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 47 years between 1971 and 2018 and the average inflation rate has been 10.5772%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)ⁿ = Rp100 * (1 + 0.11)⁴⁷ = Rp12,201

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 0.89 and the CPI today is 111.44. Therefore,

Final value = Initial value *
CPI final/CPI initial
= Rp100 *
109.02/0.89
= Rp12,201

Indonesia inflation - Conversion table

Initial Value		Equivalent value
Rp1 ruphia in 1971		Rp124.72 ruphias today
Rp5 ruphias in 1971		Rp623.62 ruphias today
Rp10 ruphias in 1971		Rp1,247.25 ruphias today
Rp50 ruphias in 1971		Rp6,236.23 ruphias today
Rp100 ruphias in 1971		Rp12,472.46 ruphias today
Rp500 ruphias in 1971		Rp62,362.3 ruphias today
Rp1,000 ruphias in 1971		Rp124,724.6 ruphias today
Rp5,000 ruphias in 1971		Rp623,623.01 ruphias today
Rp10,000 ruphias in 1971		Rp1,247,246.02 ruphias today
Rp50,000 ruphias in 1971		Rp6,236,230.09 ruphias today
Rp100,000 ruphias in 1971		Rp12,472,460.18 ruphias today
Rp500,000 ruphias in 1971		Rp62,362,300.91 ruphias today
Rp1,000,000 ruphias in 1971		Rp124,724,601.82 ruphias today

Value of Ruphia in time (by year)

Period	Value
1971	100
1972	102.1
1973	128.67
1974	163.64
1975	218.88
1976	261.54
1977	298.6
1978	334.27
1979	356.64
1980	430.07
1981	503.5
1982	540.56
1983	594.41
1984	665.73
1985	725.87
1986	758.04
1987	827.27
1988	904.2
1989	954.55
1990	1,012.59
1991	1,113.29
1992	1,224.48
1993	1,286.01
1994	1,416.78
1995	1,553.85
1996	1,693.01
1997	1,795.11
1998	1,980.42
1999	3,517.48
2000	3,585.31
2001	3,920.28
2002	4,411.89
2003	4,849.65
2004	5,100
2005	5,430.07
2006	6,357.34
2007	6,776.92
2008	7,223.08
2009	7,962.24
2010	8,183.92
2011	8,753.15
2012	9,084.62
2013	9,474.83
2014	10,206.54
2015	11,059.72
2016	11,430.55
2017	11,776.27
2018	12,201
Today	12,472.46