Australian inflation rate in 1975: 15.11%

Australia Inflation Calculator


Inflation in 1975 and Its Effect on Dollar Value

Purchasing power decreased by 15.11% in 1975 compared to 1974. On average, you would have to spend 15.11% more money in 1975 than in 1974 for the same item.

In other words, AU$1 in 1974 is equivalent in purchasing power to about AU$1.15 in 1975.

The 1974 inflation rate was 15.83%. The inflation rate in 1975 was 15.11%. The 1975 inflation rate is higher compared to the average inflation rate of 4.58% per year between 1975 and 2019.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1975 was 16.00. It was 13.90 in the previous year, 1974. The difference in CPI between the years is used by the Bureau of Statistics to officially determine inflation.

Inflation from 1974 to 1975
Average inflation rate 15.11%
Converted amount (AU$1 base) AU$1.15
Price difference (AU$1 base) AU$0.15
CPI in 1974 13.900
CPI in 1975 16.000
Inflation in 1974 15.83%
Inflation in 1975 15.11%

AUD inflation chart from 1922 to 2017

How to Calculate Inflation Rate for AU$1, 1974 to 1975

This inflation calculator uses the following inflation rate formula:

CPI in 1975CPI in 1974
1974 AUD value
1975 AUD value

Then plug in historical CPI values. The Australian CPI was 13.9 in the year 1974 and 16 in 1975:


AU$1 in 1974 has the same "purchasing power" or "buying power" as AU$1.15 in 1975.

To get the total inflation rate for the 1 years between 1974 and 1975, we use the following formula:

CPI in 1975 - CPI in 1974CPI in 1974
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

16 - 13.913.9

News headlines from 1974

Politics and news often influence economic performance. Here's what was happening at the time:

  • Ayatollah Khomeini, appeals for an Islamic republic of Iran.
  • The 1,000th victim of the Northern Ireland conflict between republican and loyalist paramilitaries is taken.
  • President Richard Nixon announces his resignation.

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: “Inflation Rate in 1975 | Australia Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 26 Apr. 2019,

Special thanks to QuickChart for providing downloadable chart images. is a reference website maintained by the Official Data Foundation.

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