Purchasing power increased by 12.73% in 1640 compared to the previous year, 1639. On average, you would have to spend 12.73% less money in 1640 than in 1639 for the same item. This is an example of deflation.
In other words, $100 in 1639 is equivalent in purchasing power to $87.27 in 1640.
The 1639 inflation rate was 64.18%. The inflation rate in 1640 was -12.73%. The 1640 inflation rate is lower compared to the average inflation rate of 0.87% per year between 1640 and 2018.
Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1640 was 9.6. It was 11 in the previous year, 1639. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation. Because the 1640 CPI is less than 1639 CPI, negative inflation (also known as deflation) has occurred.
|Average inflation rate||-12.73%|
|Converted amount ($100 base)||$87.27|
|Price difference ($100 base)||$-12.73|
|CPI in 1639||11|
|CPI in 1640||9.6|
|Inflation in 1639||64.18%|
|Inflation in 1640||-12.73%|
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 1639 and 1640.
Compare these values to the overall average of -12.73% per year:
|Category||Avg Inflation (%)||Total Inflation (%)||$100 in 1639 → 1640|
|Used cars and trucks||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 1639. This table and visualization use the earliest available data for each category.
This inflation calculator uses the following inflation rate formula:
Then plug in historical CPI values. The U.S. CPI was 11 in the year 1639 and 9.6 in 1640:
$100 in 1639 has the same "purchasing power" or "buying power" as $87.27 in 1640.
To get the total inflation rate for the 1 years between 1639 and 1640, we use the following formula:
Plugging in the values to this equation, we get:
Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (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 1640 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 20 Oct. 2018, https://www.officialdata.org/inflation-rate-in-1640.
in2013dollars.com is a reference website maintained by the Official Data Foundation.