View $100 in 1940 → **2021**

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$100 in 1940 is equivalent in purchasing power to about $4,196.30 in 2018, an increase of $4,096.30 over 78 years. The dollar had an average inflation rate of 4.91% per year between 1940 and 2018, producing a cumulative price increase of 4,096.30%.

This means that prices in 2018 are 41.96 times higher than average prices since 1940, according to the Bureau of Statistics consumer price index.

The 1940 inflation rate was 3.85%. The inflation rate in 2018 was 1.89%. The 2018 inflation rate is higher compared to the average inflation rate of 1.34% per year between 2018 and 2021.

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Cumulative price change | 4,096.30% |

Average inflation rate | 4.91% |

Converted amount ($100 base) | $4,196.30 |

Price difference ($100 base) | $4,096.30 |

CPI in 1940 | 2.700 |

CPI in 2018 | 113.300 |

Inflation in 1940 | 3.85% |

Inflation in 2018 | 1.89% |

$100 in 1940 | $4,196.30 in 2018 |

This chart shows a calculation of buying power equivalence for $100 in 1940 (price index tracking began in 1922).

For example, if you started with $100, you would need to end with $4,196.30 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When $100 is equivalent to $4,196.30 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 1940 dollars, the chart below shows how $100 is worth less over 78 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 1940 amounts in 2018 dollars, based on the 4,096.30% change in prices:

Initial value | Equivalent value |
---|---|

$1 dollar in 1940 | $41.96 dollars in 2018 |

$5 dollars in 1940 | $209.81 dollars in 2018 |

$10 dollars in 1940 | $419.63 dollars in 2018 |

$50 dollars in 1940 | $2,098.15 dollars in 2018 |

$100 dollars in 1940 | $4,196.30 dollars in 2018 |

$500 dollars in 1940 | $20,981.48 dollars in 2018 |

$1,000 dollars in 1940 | $41,962.96 dollars in 2018 |

$5,000 dollars in 1940 | $209,814.81 dollars in 2018 |

$10,000 dollars in 1940 | $419,629.63 dollars in 2018 |

$50,000 dollars in 1940 | $2,098,148.15 dollars in 2018 |

$100,000 dollars in 1940 | $4,196,296.30 dollars in 2018 |

$500,000 dollars in 1940 | $20,981,481.48 dollars in 2018 |

$1,000,000 dollars in 1940 | $41,962,962.96 dollars in 2018 |

Our calculations use the following inflation rate formula to calculate the change in value between 1940 and 2018:

CPI in 2018
CPI in 1940

×

1940 AUD value

=

2018 AUD value

Then plug in historical CPI values. The Australian CPI was 2.7 in the year 1940 and 113.3 in 2018:

113.32.7

×

$100

=

$100 in 1940 has the same "purchasing power" or "buying power" as $4,196.30 in 2018.

To get the total inflation rate for the 78 years between 1940 and 2018, we use the following formula:

CPI in 2018 - CPI in 1940CPI in 1940

×

100

=

Plugging in the values to this equation, we get:

113.3 - 2.72.7

×

100

=

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 1940 → 2018 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 27 Sep. 2021, https://www.officialdata.org/australia/inflation/1940?amount=100&endYear=2018.

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 | 4,096.30% |

Average inflation rate | 4.91% |

Converted amount ($100 base) | $4,196.30 |

Price difference ($100 base) | $4,096.30 |

CPI in 1940 | 2.700 |

CPI in 2018 | 113.300 |

Inflation in 1940 | 3.85% |

Inflation in 2018 | 1.89% |

$100 in 1940 | $4,196.30 in 2018 |