Inflation in 1991 and its effect on dollar value
$1 in 1990 is equivalent in purchasing power to about $1.03 in 1991. The dollar had an average inflation rate of 3.13% per year between 1990 and 1991, producing a cumulative price increase of 3.13%. Purchasing power decreased by 3.13% in 1991 compared to 1990. On average, you would have to spend 3.13% more money in 1991 than in 1990 for the same item.
This means that prices in 1991 are 1.03 times as high as average prices since 1990, according to the Bureau of Statistics consumer price index.
The inflation rate in 1990 was 7.48%. The inflation rate in 1991 was 3.13%. The 1991 inflation rate is higher compared to the average inflation rate of 2.53% per year between 1991 and 2024.
Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1991 was 59.30. It was 57.50 in the previous year, 1990. The difference in CPI between the years is used by the Bureau of Statistics to officially determine inflation.
⌃
| Average inflation rate | 3.13% |
| Converted amount $1 base | $1.03 |
| Price difference $1 base | $0.03 |
| CPI in 1990 | 57.500 |
| CPI in 1991 | 59.300 |
| Inflation in 1990 | 7.48% |
| Inflation in 1991 | 3.13% |
| $1 in 1990 | $1.03 in 1991 |
How to calculate inflation rate for $1, 1990 to 1991
Our calculations use the following inflation rate formula to calculate the change in value between 1990 and 1991:
CPI in 1991 CPI in 1990
×
1990 AUD value
=
1991 AUD value
Then plug in historical CPI values. The Australian CPI was 57.5 in the year 1990 and 59.3 in 1991:
59.357.5
×
$1
=
$1.03
$1 in 1990 has the same "purchasing power" or "buying power" as $1.03 in 1991.
To get the total inflation rate for the 1 years between 1990 and 1991, we use the following formula:
CPI in 1991 - CPI in 1990CPI in 1990
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
59.3 - 57.557.5
×
100
=
3%
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 1991 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 15 Dec. 2024, https://www.officialdata.org/Australia-inflation-rate-in-1991.
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.
| Average inflation rate | 3.13% |
| Converted amount $1 base | $1.03 |
| Price difference $1 base | $0.03 |
| CPI in 1990 | 57.500 |
| CPI in 1991 | 59.300 |
| Inflation in 1990 | 7.48% |
| Inflation in 1991 | 3.13% |
| $1 in 1990 | $1.03 in 1991 |