Rp

Value of 1981 Indonesian Rupiahs today

Rp100 in 1981
Rp2,687.5 in 2023

The inflation rate in Indonesia between 1981 and today has been 2,587.5%, which translates into a total increase of Rp2,587.5. This means that 100 rupiahs in 1981 are equivalent to 2,687.5 rupiahs in 2023. In other words, the purchasing power of Rp100 in 1981 equals Rp2,687.5 today. The average annual inflation rate between these periods has been 8.15%.

Inflation timeline in Indonesia (1981 - 2023)

The following chart depicts the equivalence of Rp100 due to compound 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 (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 extrapolated from the latest 12-month rolling average official data.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation 1981-2022 2,515.11%
Cumulative inflation 1981-today 2,587.5%
Avg. Annual inflation 1981-2022 8.29%
CPI 1981 4.71
CPI 2022 123.26
CPI 2022-12 (latest official data) 126.1
CPI today 126.67

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 Consumer Price Index (CPI) formula or the compound interest formula.

Using the CPI formula

When we have both the start and end years, we can use the following formula:

Valuet =Value0 ×
CPIt/CPI0

To obtain the values equivalent in buying power between 1981 and 2022, use the corresponding CPI values:

Value2022
=Value1981 ×
CPI2022/CPI1981
=Rp 100 ×
123.26/4.71
Rp2,615.11

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 126.67:

Valuetoday
=Value1981 ×
CPItoday/CPI1981
=Rp 100 ×
126.67/4.71
Rp2,687.5

Alternative: Using the compound interest formula

Given that money changes with time as a result of an inflation rate that acts as compound interest, we can use the following formula: 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 41 years between 1981 and 2022 and the average inflation rate was 8.2862%. Therefore, we can resolve the formula like this:

Value2022
=PV × (1 + i)n
=Rp100 × (1 + 0.082862)41
Rp2,615.11

Indonesia inflation - Conversion table

Initial Value Equivalent value
Rp1 rupiah in 1981 Rp26.15 rupiahs in 2022
Rp5 rupiahs in 1981 Rp130.76 rupiahs in 2022
Rp10 rupiahs in 1981 Rp261.51 rupiahs in 2022
Rp50 rupiahs in 1981 Rp1,307.55 rupiahs in 2022
Rp100 rupiahs in 1981 Rp2,615.11 rupiahs in 2022
Rp500 rupiahs in 1981 Rp13,075.55 rupiahs in 2022
Rp1,000 rupiahs in 1981 Rp26,151.1 rupiahs in 2022
Rp5,000 rupiahs in 1981 Rp130,755.49 rupiahs in 2022
Rp10,000 rupiahs in 1981 Rp261,510.98 rupiahs in 2022
Rp50,000 rupiahs in 1981 Rp1,307,554.89 rupiahs in 2022
Rp100,000 rupiahs in 1981 Rp2,615,109.78 rupiahs in 2022
Rp500,000 rupiahs in 1981 Rp13,075,548.9 rupiahs in 2022
Rp1,000,000 rupiahs in 1981 Rp26,151,097.8 rupiahs in 2022
Cumulative inflation From 1981 2,587.5%
Avg. annual inflation From 1981 8.15%
CPI 1981 4.71
CPI today 126.67

Value of Rupiah over time (by year)

Period Value
1981 100
1982 109.45
1983 122.36
1984 135.15
1985 141.54
1986 149.78
1987 163.68
1988 176.84
1989 188.19
1990 202.91
1991 222.02
1992 238.72
1993 261.81
1994 284.15
1995 310.91
1996 335.7
1997 356.61
1998 565.05
1999 680.76
2000 705.87
2001 787.04
2002 880.7
2003 940.21
2004 997.23
2005 1,101.47
2006 1,245.86
2007 1,325.67
2008 1,461.25
2009 1,525.34
2010 1,603.66
2011 1,689.55
2012 1,761.85
2013 1,874.83
2014 1,994.73
2015 2,121.65
2016 2,196.46
2017 2,280.12
2018 2,353.04
2019 2,424.35
2020 2,470.93
2021 2,509.47
2022 2,615.11
2022-12 2,675.39
Today 2,687.5

All available years

Today's value of indonesian rupiahs by year:

1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |

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