$100 in 2017 is worth $101.89 in 2018

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Value of $100 from 2017 to 2018

$100 in 2017 is equivalent in purchasing power to about $101.89 in 2018. The dollar had an average inflation rate of 1.89% per year between 2017 and 2018, producing a cumulative price increase of 1.89%.

This means that prices in 2018 are 1.02 times as high as average prices since 2017, according to the Bureau of Statistics consumer price index.

The inflation rate in 2017 was 1.92%. The inflation rate in 2018 was 1.89%. The 2018 inflation rate is lower compared to the average inflation rate of 2.97% per year between 2018 and 2025.

⌃
Inflation from 2017 to 2018
Average inflation rate1.89%
Converted amount
$100 base		$101.89
Price difference
$100 base		$1.89
CPI in 2017111.200
CPI in 2018113.300
Inflation in 20171.92%
Inflation in 20181.89%
$100 in 2017$101.89 in 2018
Recent AUD inflation
Annual Rate, the Bureau of Statistics CPI
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How to calculate inflation rate for $100, 2017 to 2018

Our calculations use the following inflation rate formula to calculate the change in value between 2017 and 2018:

CPI in 2018 CPI in 2017
×
2017 AUD value
=
2018 AUD value

Then plug in historical CPI values. The Australian CPI was 111.2 in the year 2017 and 113.3 in 2018:

113.3111.2
×
$100
=
$101.89

$100 in 2017 has the same "purchasing power" or "buying power" as $101.89 in 2018.

To get the total inflation rate for the 1 years between 2017 and 2018, we use the following formula:

CPI in 2018 - CPI in 2017CPI in 2017
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

113.3 - 111.2111.2
×
100
=
2%

Data source & citation

Raw data for these calculations comes from the government of Australia's annual (CPI) as provided by the Reserve Bank of Australia. The consumer price index was established in 1922 and is tracked by Australian Bureau of Statistics (ABS).

You may use the following MLA citation for this page: “2017 dollars in 2018 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 15 May. 2025, https://www.officialdata.org/2017-AUD-in-2018.

Special thanks to QuickChart for their chart image API, which is used for chart downloads.

Ian Webster

About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

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» Read more about inflation and investment.

Inflation from 2017 to 2018
Average inflation rate1.89%
Converted amount
$100 base		$101.89
Price difference
$100 base		$1.89
CPI in 2017111.200
CPI in 2018113.300
Inflation in 20171.92%
Inflation in 20181.89%
$100 in 2017$101.89 in 2018