# Inflation calculator - Indonesian Ruphia

This tool is useful to calculate the time value of money based on historical inflation and CPI values. To start, select an amount and two years, or browse the default calculation results.

Rp100 in 1969

Rp15,646.66 in 2021

The inflation rate in Indonesia between 1969 and 2021 was 15,546.66%, which translates into a total increase of Rp15,546.66. This means that 100 ruphias in 1969 are equivalent to 15,646.66 ruphias in 2021. In other words, the purchasing power of Rp100 in 1969 equals Rp15,646.66 in 2021. The average annual inflation rate between these periods was 10.2%.

## Inflation timeline in Indonesia (1969 - 2021)

The following chart depicts the equivalence of indonesian ruphias throughout the years 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.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1969-2021) 15,546.66%
Annual inflation avg. (1969-2021) 10.2%
CPI 1969 0.75
CPI 2021 117.32
Rp1 in 1969 Rp156.47 in 2021

## How to calculate the time value of money with inflation data?

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, the future value is the amount in 2021 that equals Rp100 in 1969 in terms of purchasing power. There are 52 years between 1969 and 2021 and the average inflation rate was 10.2048%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = Rp100 * (1 + 0.102048)52 = Rp15,646.656707 ≈ Rp15,646.66

#### 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 1969 was 0.75 and in 2021 was 117.32. Therefore,

Final value = Initial value *
CPI final/CPI initial
= Rp100 *
117.32/0.75
= Rp15,646.66

### Indonesia inflation - Conversion table

Initial Value Equivalent value
Rp1 ruphia in 1969 Rp156.47 ruphias in 2021
Rp5 ruphias in 1969 Rp782.33 ruphias in 2021
Rp10 ruphias in 1969 Rp1,564.67 ruphias in 2021
Rp50 ruphias in 1969 Rp7,823.33 ruphias in 2021
Rp100 ruphias in 1969 Rp15,646.66 ruphias in 2021
Rp500 ruphias in 1969 Rp78,233.28 ruphias in 2021
Rp1,000 ruphias in 1969 Rp156,466.57 ruphias in 2021
Rp5,000 ruphias in 1969 Rp782,332.84 ruphias in 2021
Rp10,000 ruphias in 1969 Rp1,564,665.67 ruphias in 2021
Rp50,000 ruphias in 1969 Rp7,823,328.35 ruphias in 2021
Rp100,000 ruphias in 1969 Rp15,646,656.71 ruphias in 2021
Rp500,000 ruphias in 1969 Rp78,233,283.53 ruphias in 2021
Rp1,000,000 ruphias in 1969 Rp156,466,567.07 ruphias in 2021

Period Value
1969 100
1970 109.17
1971 119.17
1972 121.67
1973 153.33
1974 195
1975 260.83
1976 311.67
1977 355.83
1978 398.33
1979 425
1980 512.5
1981 600
1982 644.17
1983 708.33
1984 793.33
1985 865
1986 903.33
1987 985.83
1988 1,077.5
1989 1,137.5
1990 1,206.67
1991 1,326.67
1992 1,459.17
1993 1,532.5
1994 1,688.33
1995 1,851.67
1996 2,017.5
1997 2,139.17
1998 2,360
1999 4,191.67
2000 4,272.5
2001 4,671.67
2002 5,257.5
2003 5,779.17
2004 6,077.5
2005 6,470.83
2006 7,575.83
2007 8,075.83
2008 8,607.5
2009 9,488.33
2010 9,752.5
2011 10,430.83
2012 10,825.83
2013 11,290.83
2014 12,162.79
2015 13,179.5
2016 13,621.4
2017 14,033.39
2018 14,539.53
2019 14,994.72
2020 15,402.3
2021 15,646.66