Value of 1979 Australian Dollars today

$100 in 1979

$502.21 in 2018

The inflation rate in Australia between 1979 and today has been 402.21%, which translates into a total increase of $402.21. This means that 100 dolars in 1979 are equivalent to 502.21 dolars in 2018. In other words, the purchasing power of $100 in 1979 equals $502.21 today. The average annual inflation rate has been 4.12%.

Inflation timeline in Australia (1979-2018)

The following chart ilustrates the equivalence of $100 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 (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. Today's values were obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1979-2018) 396.02%
Total Inflation* 402.21%
Annual inflation avg. (1979-2018) 4.19%
Annual inflation avg.* 4.12%
CPI 1979 20.99
CPI 2018 104.11
CPI today* 105.41
$1 in 1979 $4.96 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 $100 worth today. There are 39 years between 1979 and 2018 and the average inflation rate has been 4.1171%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = $100 * (1 + 0.04)39 = $496.02

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 1979 was 20.99 and the CPI today is 105.41. Therefore,

Final value = Initial value *
CPI final/CPI initial
= $100 *
104.11/20.99
= $496.02

Australia inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1979 $5.02 dolars today
$5 dolars in 1979 $25.11 dolars today
$10 dolars in 1979 $50.22 dolars today
$50 dolars in 1979 $251.11 dolars today
$100 dolars in 1979 $502.21 dolars today
$500 dolars in 1979 $2,511.07 dolars today
$1,000 dolars in 1979 $5,022.15 dolars today
$5,000 dolars in 1979 $25,110.74 dolars today
$10,000 dolars in 1979 $50,221.48 dolars today
$50,000 dolars in 1979 $251,107.41 dolars today
$100,000 dolars in 1979 $502,214.82 dolars today
$500,000 dolars in 1979 $2,511,074.1 dolars today
$1,000,000 dolars in 1979 $5,022,148.19 dolars today

Value of Dollar in time (by year)

Period Value
1979 100
1980 110.18
1981 120.35
1982 133.63
1983 148.67
1984 161.5
1985 165.49
1986 179.2
1987 196.46
1988 210.62
1989 226.55
1990 244.25
1991 261.06
1992 265.04
1993 265.93
1994 270.8
1995 277.88
1996 292.04
1997 296.46
1998 295.58
1999 300
2000 305.75
2001 323.45
2002 333.63
2003 343.36
2004 351.77
2005 360.62
2006 370.8
2007 383.19
2008 394.25
2009 408.85
2010 417.26
2011 428.76
2012 441.59
2013 451.33
2014 463.72
2015 471.68
2016 479.65
2017 486.73
2018 496.02
Today 502.21