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Inflation calculator - Indian Rupee

$100 in 1980
$184.66 in 1987

The inflation rate in India between 1980 and 1987 was 84.66%, which translates into a total increase of $84.66. This means that 100 rupees in 1980 are equivalent to 184.66 rupees in 1987. In other words, the purchasing power of $100 in 1980 equals $184.66 in 1987. The average annual inflation rate between these periods was 9.16%.

Inflation timeline in India (1980 - 1987)

The following chart depicts the equivalence of $100 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 (INR) 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.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation from 1980 to 1987 84.66%
Avg. Annual inflation from 1980 to 1987 9.16%
CPI 1980 6.55
CPI 1987 12.1

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 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 1980 and 1987, use the corresponding CPI values:

Value1987
=Value1980 ×
CPI1987/CPI1980
=$ 100 ×
12.1/6.55
$184.66

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 $100 worth today. There are 7 years between 1980 and 1987 and the average inflation rate was 9.1574%. Therefore, we can resolve the formula like this:

Value1987
=PV × (1 + i)n
=$100 × (1 + 0.091574)7
$184.66

India inflation - Conversion table

Initial Value Equivalent value
$1 rupee in 1980 $1.85 rupees in 1987
$5 rupees in 1980 $9.23 rupees in 1987
$10 rupees in 1980 $18.47 rupees in 1987
$50 rupees in 1980 $92.33 rupees in 1987
$100 rupees in 1980 $184.66 rupees in 1987
$500 rupees in 1980 $923.3 rupees in 1987
$1,000 rupees in 1980 $1,846.6 rupees in 1987
$5,000 rupees in 1980 $9,232.98 rupees in 1987
$10,000 rupees in 1980 $18,465.96 rupees in 1987
$50,000 rupees in 1980 $92,329.79 rupees in 1987
$100,000 rupees in 1980 $184,659.59 rupees in 1987
$500,000 rupees in 1980 $923,297.93 rupees in 1987
$1,000,000 rupees in 1980 $1,846,595.85 rupees in 1987
Cumulative inflation 1980-1987 84.66%
Avg. annual inflation 1980-1987 9.16%
CPI 1980 6.55
CPI 1987 12.1

Value of Rupee over time (by year)

Period Value
1980 100
1981 113.11
1982 122.04
1983 136.52
1984 147.88
1985 156.1
1986 169.72
1987 184.66

All available years

Today's value of indian rupees by year:

1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 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 | 2023 |

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