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Inflation calculator - Australian Dollar

$5 in 1977
$27.91 in 2018

The inflation rate in Australia between 1977 and 2018 was 458.13%, which translates into a total increase of $22.91. This means that 5 dollars in 1977 are equivalent to 27.91 dollars in 2018. In other words, the purchasing power of $5 in 1977 equals $27.91 in 2018. The average annual inflation rate between these periods was 4.28%.

Inflation timeline in Australia (1977 - 2018)

The following chart depicts the equivalence of $5 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 (AUD) 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 1977 to 2018 458.13%
Avg. Annual inflation from 1977 to 2018 4.28%
CPI 1977 18.85
CPI 2018 105.22

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 1977 and 2018, use the corresponding CPI values:

Value2018
=Value1977 ×
CPI2018/CPI1977
=$ 5 ×
105.22/18.85
$27.91

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 $5 worth today. There are 41 years between 1977 and 2018 and the average inflation rate was 4.2829%. Therefore, we can resolve the formula like this:

Value2018
=PV × (1 + i)n
=$5 × (1 + 0.042829)41
$27.91

Australia inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1977 $5.58 dollars in 2018
$5 dollars in 1977 $27.91 dollars in 2018
$10 dollars in 1977 $55.81 dollars in 2018
$50 dollars in 1977 $279.06 dollars in 2018
$100 dollars in 1977 $558.13 dollars in 2018
$500 dollars in 1977 $2,790.64 dollars in 2018
$1,000 dollars in 1977 $5,581.28 dollars in 2018
$5,000 dollars in 1977 $27,906.42 dollars in 2018
$10,000 dollars in 1977 $55,812.83 dollars in 2018
$50,000 dollars in 1977 $279,064.16 dollars in 2018
$100,000 dollars in 1977 $558,128.32 dollars in 2018
$500,000 dollars in 1977 $2,790,641.61 dollars in 2018
$1,000,000 dollars in 1977 $5,581,283.22 dollars in 2018
Cumulative inflation 1977-2018 458.13%
Avg. annual inflation 1977-2018 4.28%
CPI 1977 18.85
CPI 2018 105.22

Value of Dollar over time (by year)

Period Value
1977 5
1978 5.4
1979 5.89
1980 6.49
1981 7.11
1982 7.91
1983 8.71
1984 9.05
1985 9.66
1986 10.54
1987 11.43
1988 12.26
1989 13.18
1990 14.15
1991 14.6
1992 14.75
1993 15.01
1994 15.3
1995 16.01
1996 16.43
1997 16.47
1998 16.61
1999 16.85
2000 17.6
2001 18.38
2002 18.93
2003 19.45
2004 19.9
2005 20.44
2006 21.16
2007 21.66
2008 22.6
2009 23
2010 23.67
2011 24.45
2012 24.88
2013 25.49
2014 26.13
2015 26.52
2016 26.86
2017 27.38
2018 27.91

All available years

Today's value of australian dollars by year:

1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 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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