$1 in 1930 is worth $0.93 in 1931

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Value of $1 from 1930 to 1931

$1 in 1930 is equivalent in purchasing power to about $0.93 in 1931. The dollar had an average deflation rate of -7.41% per year since 1930, producing a cumulative price change of -7.41%.

This means that prices in 1931 are 7.41% lower than average prices in 1930, according to the Bureau of Statistics consumer price index.

The inflation rate in 1930 was -6.90%. The inflation rate in 1931 was -7.41%. The 1931 inflation rate is lower compared to the average inflation rate of 4.36% per year between 1931 and 2026.

⌃
Inflation from 1930 to 1931
Average inflation rate -7.41%
Converted amount
$1 base		 $0.93
Price difference
$1 base		 $-0.07
CPI in 1930 2.700
CPI in 1931 2.500
Inflation in 1930 -6.90%
Inflation in 1931 -7.41%
$1 in 1930 $0.93 in 1931
Recent AUD inflation
Annual Rate, the Bureau of Statistics CPI
Download

How to calculate inflation rate for $1, 1930 to 1931

Our calculations use the following inflation rate formula to calculate the change in value between 1930 and 1931:

CPI in 1931CPI in 1930
×
1930 AUD value
=
1931 AUD value

Then plug in historical CPI values. The Australian CPI was 2.7 in the year 1930 and 2.5 in 1931:

2.52.7
×
$1
=
$0.93

$1 in 1930 has the same "purchasing power" or "buying power" as $0.93 in 1931.

To get the total inflation rate for the 1 years between 1930 and 1931, we use the following formula:

CPI in 1931 - CPI in 1930CPI in 1930
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

2.5 - 2.72.7
×
100
=
-7%

Frequently asked questions

How much is $1 from 1930 worth in 1931?

$1 in 1930 has about the same buying power as $0.93 in 1931, based on the consumer price index published by the Bureau of Statistics. Prices in 1931 are 7.41% lower than they were in 1930.

What was the inflation rate in 1930?

The Australian inflation rate in 1930 was -6.90%, measured as the change in the consumer price index from 1929 to 1930. See inflation in 1930 for more detail.

What has the average inflation rate been from 1930 to 1931?

Prices fell by an average of 7.41% per year between 1930 and 1931, a cumulative decrease of 7.41%.

How is this calculated?

Divide the CPI in 1931 (2.5) by the CPI in 1930 (2.7), then multiply by the original amount: 2.5 ÷ 2.7 × $1 = $0.93. 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: “$1 in 1930 → 1931 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 6 Oct. 2026, https://www.officialdata.org/australia/inflation/1930?amount=1&endYear=1931.

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.

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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Inflation from 1930 to 1931
Average inflation rate -7.41%
Converted amount
$1 base		 $0.93
Price difference
$1 base		 $-0.07
CPI in 1930 2.700
CPI in 1931 2.500
Inflation in 1930 -6.90%
Inflation in 1931 -7.41%
$1 in 1930 $0.93 in 1931