U.S. inflation rate in 1647: -25.45%

Inflation in 1647 and its effect on dollar value

Purchasing power increased by 25.45% in 1647 compared to 1646. On average, you would have to spend 25.45% less money in 1647 than in 1646 for the same item. This is an example of deflation.

In other words, $1 in 1646 is equivalent in purchasing power to about $0.75 in 1647.

The 1646 inflation rate was -37.50%. The inflation rate in 1647 was -25.45%. The 1647 inflation rate is lower compared to the average inflation rate of 1.12% per year between 1647 and 2020.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1647 was 4.10. It was 5.50 in the previous year, 1646. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation. Because the 1647 CPI is less than 1646 CPI, negative inflation (also known as deflation) has occurred.


Inflation from 1646 to 1647
Average inflation rate -25.45%
Converted amount ($1 base) $0.75
Price difference ($1 base) $-0.25
CPI in 1646 5.500
CPI in 1647 4.100
Inflation in 1646 -37.50%
Inflation in 1647 -25.45%

USD Inflation since 1635
Annual Rate, the Bureau of Labor Statistics CPI
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Inflation by Spending Category

CPI is the weighted combination of many categories of spending that are tracked by the government. Breaking down these categories helps explain the main drivers behind price changes. This chart shows the average rate of inflation for select CPI categories between 1646 and 1647.

Compare these values to the overall average of -25.45% per year:

Category Avg Inflation (%) Total Inflation (%) $1 in 1646 → 1647
Food and beverages 0.00 0.00 1.00
Housing 0.00 0.00 1.00
Apparel 0.00 0.00 1.00
Transportation 0.00 0.00 1.00
Medical care 0.00 0.00 1.00
Recreation 0.00 0.00 1.00
Education and communication 0.00 0.00 1.00
Other goods and services 0.00 0.00 1.00

For all these visualizations, it's important to note that not all categories may have been tracked since 1646. This table and charts use the earliest available data for each category.



How to Calculate Inflation Rate for $1, 1646 to 1647

Our calculations use the following inflation rate formula to calculate the change in value between 1646 and 1647:

CPI in 1647 CPI in 1646
×
1646 USD value
=
1647 USD value

Then plug in historical CPI values. The U.S. CPI was 5.5 in the year 1646 and 4.1 in 1647:

4.15.5
×
$1
=
$0.75

$1 in 1646 has the same "purchasing power" or "buying power" as $0.75 in 1647.

To get the total inflation rate for the 1 years between 1646 and 1647, we use the following formula:

CPI in 1647 - CPI in 1646CPI in 1646
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

4.1 - 5.55.5
×
100
=
-25%

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 1647 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 30 Nov. 2020, https://www.officialdata.org/inflation-rate-in-1647.

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 1646 to 1647
Average inflation rate -25.45%
Converted amount ($1 base) $0.75
Price difference ($1 base) $-0.25
CPI in 1646 5.500
CPI in 1647 4.100
Inflation in 1646 -37.50%
Inflation in 1647 -25.45%