U.S. inflation rate in 1905: -1.12%

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Inflation in 1905 and Its Effect on Dollar Value

Purchasing power increased by 1.12% in 1905 compared to the previous year, 1904. On average, you would have to spend 1.12% less money in 1905 than in 1904 for the same item. This is an example of deflation.

In other words, $100 in 1904 is equivalent in purchasing power to $98.88 in 1905.

The 1904 inflation rate was 1.14%. The inflation rate in 1905 was -1.12%. The 1905 inflation rate is lower compared to the average inflation rate of 3.01% per year between 1905 and 2018.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1905 was 8.8. It was 8.9 in the previous year, 1904. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation. Because the 1905 CPI is less than 1904 CPI, negative inflation (also known as deflation) has occurred.


Inflation from 1904 to 1905
Average inflation rate -1.12%
Converted amount ($100 base) $98.88
Price difference ($100 base) $-1.12
CPI in 1904 8.9
CPI in 1905 8.8
Inflation in 1904 1.14%
Inflation in 1905 -1.12%


U.S. inflation chart since 1665


Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £100.00 in 1904 would be equivalent to £100.00 in 1905, an absolute change of £0.00 and a cumulative change of 0.00%.

Compare these numbers to the US's overall absolute change of $-1.12 and total percent change of -1.12%.


Inflation by Spending Category

CPI is the weighted combination of many categories of spending that are tracked by the government. This chart shows the average rate of inflation for select CPI categories between 1904 and 1905.

Compare these values to the overall average of -1.12% per year:

Category Avg Inflation (%) Total Inflation (%) $100 in 1904 → 1905
Food 0.00 0.00 100.00
Shelter 0.00 0.00 100.00
Energy 0.00 0.00 100.00
Apparel 0.00 0.00 100.00
New vehicles 0.00 0.00 100.00
Used cars and trucks 0.00 0.00 100.00
Transportation services 0.00 0.00 100.00
Medical care services 0.00 0.00 100.00
Medical care commodities 0.00 0.00 100.00

It's important to note that not all categories may be tracked since 1904. This table and visualization use the earliest available data for each category.



How to Calculate Inflation Rate for $100, 1904 to 1905

This inflation calculator uses the following inflation rate formula:

CPI in 1905CPI in 1904
×
1904 USD value
=
1905 USD value

Then plug in historical CPI values. The U.S. CPI was 8.9 in the year 1904 and 8.8 in 1905:

8.88.9
×
$100
=
$98.88

$100 in 1904 has the same "purchasing power" or "buying power" as $98.88 in 1905.

To get the total inflation rate for the 1 years between 1904 and 1905, we use the following formula:

CPI in 1905 - CPI in 1904CPI in 1904
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

8.8 - 8.98.9
×
100
=
-1%

Comparison to S&P 500 Index

To help put this inflation into perspective, if you had invested $100 in the S&P 500 index in 1904, your investment would be worth approximately $160.28 in 1905. This is a change of 60.28%.

This means the nominal return on a $100 investment is $60.28, but inflation would eat into your real returns.

Inflation would account for -1.14% of your returns ($-0.68), for an inflation-adjusted real return of about $60.96.


News headlines from 1904

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

  • Japanese troops land at Chemulpo in Korea in order to advance toward the border of Manchuria.
  • US gains control of the Panama Canal Zone for a total of $10 million.
  • The St Louis Police force use fingerprints as an investigative method for the first time.

Data Source & Citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.

You may use the following MLA citation for this page: “Inflation Rate in 1905 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 19 Oct. 2018, https://www.officialdata.org/inflation-rate-in-1905.

in2013dollars.com is a reference website maintained by the Official Data Foundation.


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