$1 in 1920 is worth $0.88 in 1921

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Value of $1 from 1920 to 1921

$1 in 1920 is equivalent in purchasing power to about $0.88 in 1921. The dollar had an average deflation rate of -12.11% per year since 1920, producing a cumulative price change of -12.11%.

This means that prices in 1921 are 12.11% lower than average prices in 1920, according to Statistics Canada consumer price index.

The inflation rate in 1920 was 16.30%. The inflation rate in 1921 was -12.11%. The 1921 inflation rate is lower compared to the average inflation rate of 2.71% per year between 1921 and 2026.

⌃
Inflation from 1920 to 1921
Average inflation rate -12.11%
Converted amount
$1 base		 $0.88
Price difference
$1 base		 $-0.12
CPI in 1920 11.358
CPI in 1921 9.983
Inflation in 1920 16.30%
Inflation in 1921 -12.11%
$1 in 1920 $0.88 in 1921
Recent CAD inflation
Annual Rate, Statistics Canada CPI
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How to calculate inflation rate for $1, 1920 to 1921

Our calculations use the following inflation rate formula to calculate the change in value between 1920 and 1921:

CPI in 1921CPI in 1920
×
1920 CAD value
=
1921 CAD value

Then plug in historical CPI values. The Canadian CPI was 11.35833333 in the year 1920 and 9.983333333 in 1921:

9.98333333311.35833333
×
$1
=
$0.88

$1 in 1920 has the same "purchasing power" or "buying power" as $0.88 in 1921.

To get the total inflation rate for the 1 years between 1920 and 1921, we use the following formula:

CPI in 1921 - CPI in 1920CPI in 1920
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

9.983333333 - 11.3583333311.35833333
×
100
=
-12%

Frequently asked questions

How much is $1 from 1920 worth in 1921?

$1 in 1920 has about the same buying power as $0.88 in 1921, based on the consumer price index published by Statistics Canada. Prices in 1921 are 12.11% lower than they were in 1920.

What was the inflation rate in 1920?

The Canadian inflation rate in 1920 was 16.30%, measured as the change in the consumer price index from 1919 to 1920. See inflation in 1920 for more detail.

What has the average inflation rate been from 1920 to 1921?

Prices fell by an average of 12.11% per year between 1920 and 1921, a cumulative decrease of 12.11%.

How is this calculated?

Divide the CPI in 1921 (9.983) by the CPI in 1920 (11.358), then multiply by the original amount: 9.983 ÷ 11.358 × $1 = $0.88. See the step-by-step formula above.

Data source & citation

Raw data for these calculations comes from the government of Canada's annual Consumer Price Index (CPI), established in 1914 and computed by Statistics Canada (StatCan).

You may use the following MLA citation for this page: “$1 in 1920 → 1921 | Canada Inflation Calculator.” Official Inflation Data, Alioth Finance, 8 Oct. 2026, https://www.officialdata.org/canada/inflation/1920?amount=1&endYear=1921.

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 1920 to 1921
Average inflation rate -12.11%
Converted amount
$1 base		 $0.88
Price difference
$1 base		 $-0.12
CPI in 1920 11.358
CPI in 1921 9.983
Inflation in 1920 16.30%
Inflation in 1921 -12.11%
$1 in 1920 $0.88 in 1921