# Value of 2011 Australian Dollars today

\$100 in 2011

\$121.02 in 2021

The inflation rate in Australia between 2011 and today has been 21.02%, which translates into a total increase of \$21.02. This means that 100 dolars in 2011 are equivalent to 121.02 dolars in 2021. In other words, the purchasing power of \$100 in 2011 equals \$121.02 today. The average annual inflation rate has been 1.75%.

## Inflation timeline in Australia (2011-2021)

The following chart depicts the equivalence of \$100 throughout the years due to 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. Today's values were obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (2011-2021) 20.95%
Total Inflation* 21.02%
Annual inflation avg. (2011-2021) 1.92%
Annual inflation avg.* 1.75%
CPI 2011 89.99
CPI 2021 108.85
CPI today* 108.91
\$1 in 2011 \$1.21 in 2021

* 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 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, it indicates how much are \$100 worth today. There are 10 years between 2011 and 2021 and the average inflation rate has been 1.7495%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = \$100 * (1 + 0.02)10 = \$120.95

#### 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 2011 was 89.99 and the CPI today is 108.91. Therefore,

Final value = Initial value *
CPI final/CPI initial
= \$100 *
108.85/89.99
= \$120.95

### Australia inflation - Conversion table

Initial Value Equivalent value
\$1 dollar in 2011 \$1.21 dolars today
\$5 dolars in 2011 \$6.05 dolars today
\$10 dolars in 2011 \$12.1 dolars today
\$50 dolars in 2011 \$60.51 dolars today
\$100 dolars in 2011 \$121.02 dolars today
\$500 dolars in 2011 \$605.09 dolars today
\$1,000 dolars in 2011 \$1,210.19 dolars today
\$5,000 dolars in 2011 \$6,050.94 dolars today
\$10,000 dolars in 2011 \$12,101.89 dolars today
\$50,000 dolars in 2011 \$60,509.44 dolars today
\$100,000 dolars in 2011 \$121,018.88 dolars today
\$500,000 dolars in 2011 \$605,094.38 dolars today
\$1,000,000 dolars in 2011 \$1,210,188.75 dolars today

Period Value
2011 100
2012 102.99
2013 105.26
2014 108.15
2015 110.01
2016 111.87
2017 113.52
2018 115.69
2019 117.75
2020 119.92
2021 120.95
Today 121.02