The Australian dollar has lost 23% of its value since 2017
Updated: September 11, 2026$100 in 2017 is equivalent in purchasing power to about $129.14 today, an increase of $29.14 over 9 years. Cumulative inflation since 2017 is 29.14%: the dollar had an average inflation rate of 2.88% per year between 2017 and today.
This means that today's prices are 1.29 times as high as average prices in 2017, according to the Bureau of Statistics consumer price index. A dollar today only buys 77.4% of what it could buy back then.
The inflation rate in 2017 was 1.92%. The current inflation rate compared to the end of last year is now 1.13%. If this number holds, $100 today will be equivalent in buying power to $101.13 next year.
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| Cumulative price change | 29.14% |
| Average inflation rate | 2.88% |
|
Converted amount
$100 base | $129.14 |
|
Price difference
$100 base | $29.14 |
| CPI in 2017 | 111.200 |
| CPI in 2026 | 143.600 |
| Inflation in 2017 | 1.92% |
| Inflation in 2026 | 1.13% |
| $100 in 2017 | $129.14 in 2026 |
Buying power of $100 in 2017
This chart shows a calculation of buying power equivalence for $100 in 2017 (price index tracking began in 1922).
For example, if you started with $100, you would need to end with $129.14 in order to "adjust" for inflation (sometimes refered to as "beating inflation").
When $100 is equivalent to $129.14 over time, that means that the "real value" of a single Australian dollar decreases over time. In other words, a dollar will pay for fewer items at the store.
This effect explains how inflation erodes the value of a dollar over time. By calculating the value in 2017 dollars, the chart below shows how $100 is worth less over 9 years.
According to the Bureau of Statistics, each of these AUD amounts below is equal in terms of what it could buy at the time:
This conversion table shows various other 2017 amounts in today's dollars, based on the 29.14% change in prices:
| Initial value | Equivalent value |
|---|---|
| $1 dollar in 2017 | $1.29 dollars today |
| $5 dollars in 2017 | $6.46 dollars today |
| $10 dollars in 2017 | $12.91 dollars today |
| $50 dollars in 2017 | $64.57 dollars today |
| $100 dollars in 2017 | $129.14 dollars today |
| $500 dollars in 2017 | $645.68 dollars today |
| $1,000 dollars in 2017 | $1,291.37 dollars today |
| $5,000 dollars in 2017 | $6,456.83 dollars today |
| $10,000 dollars in 2017 | $12,913.67 dollars today |
| $50,000 dollars in 2017 | $64,568.35 dollars today |
| $100,000 dollars in 2017 | $129,136.69 dollars today |
| $500,000 dollars in 2017 | $645,683.45 dollars today |
| $1,000,000 dollars in 2017 | $1,291,366.91 dollars today |
How to calculate inflation rate for $100 since 2017
Our calculations use the following inflation rate formula to calculate the change in value between 2017 and today:
CPI todayCPI in 2017
×
2017 AUD value
=
Today's value
Then plug in historical CPI values. The Australian CPI was 111.2 in the year 2017 and 143.6 in 2026:
143.6111.2
×
$100
=
$129.14
$100 in 2017 has the same "purchasing power" or "buying power" as $129.14 in 2026.
To get the total inflation rate for the 9 years between 2017 and 2026, we use the following formula:
CPI in 2026 - CPI in 2017CPI in 2017
×
100
=
Cumulative inflation rate (9 years)
Plugging in the values to this equation, we get:
143.6 - 111.2111.2
×
100
=
29%
Frequently asked questions
How much is $100 from 2017 worth today?
$100 in 2017 has about the same buying power as $129.14 today, based on the consumer price index published by the Bureau of Statistics. Prices today are 1.29 times as high as they were in 2017.
What was the inflation rate in 2017?
The Australian inflation rate in 2017 was 1.92%, measured as the change in the consumer price index from 2016 to 2017. See inflation in 2017 for more detail.
What has the average inflation rate been since 2017?
Prices rose by an average of 2.88% per year between 2017 and today, a cumulative increase of 29.14%. Because inflation compounds, these yearly changes add up over 9 years.
How much value has the dollar lost since 2017?
A dollar today buys about 77.4% of what it could in 2017. In other words, it has lost about 22.6% of its purchasing power.
How is this calculated?
Divide the CPI in 2026 (143.6) by the CPI in 2017 (111.2), then multiply by the original amount: 143.6 ÷ 111.2 × $100 = $129.14. See the step-by-step formula above.
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: “$100 in 2017 → $129.14 today | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 9 Oct. 2026, https://www.officialdata.org/australia/inflation/2017.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
in2013dollars.com is a reference website maintained by the Official Data Foundation.
| Cumulative price change | 29.14% |
| Average inflation rate | 2.88% |
|
Converted amount
$100 base | $129.14 |
|
Price difference
$100 base | $29.14 |
| CPI in 2017 | 111.200 |
| CPI in 2026 | 143.600 |
| Inflation in 2017 | 1.92% |
| Inflation in 2026 | 1.13% |
| $100 in 2017 | $129.14 in 2026 |