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# U.S. inflation rate in 1802: -15.75%

### Inflation in 1802 and Its Effect on Dollar Value

Purchasing power increased by 15.75% in 1802 compared to 1801. On average, you would have to spend 15.75% less money in 1802 than in 1801 for the same item. This is an example of deflation.

In other words, \$1 in 1801 is equivalent in purchasing power to about \$0.84 in 1802.

The 1801 inflation rate was 0.79%. The inflation rate in 1802 was -15.75%. The 1802 inflation rate is lower compared to the average inflation rate of 1.48% per year between 1802 and 2019.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1802 was 10.70. It was 12.70 in the previous year, 1801. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation. Because the 1802 CPI is less than 1801 CPI, negative inflation (also known as deflation) has occurred.

 Average inflation rate -15.75% Converted amount (\$1 base) \$0.84 Price difference (\$1 base) \$-0.16 CPI in 1801 12.700 CPI in 1802 10.700 Inflation in 1801 0.79% Inflation in 1802 -15.75%

### Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1801 would be equivalent to £0.77 in 1802, an absolute change of £-0.23 and a cumulative change of -23.18%.

Compare these numbers to the US's overall absolute change of \$-0.16 and total percent change of -15.75%.

### 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 1801 and 1802.

Compare these values to the overall average of -15.75% per year:

Category Avg Inflation (%) Total Inflation (%) \$1 in 1801 → 1802
Food 0.00 0.00 1.00
Shelter 0.00 0.00 1.00
Energy 0.00 0.00 1.00
Apparel 0.00 0.00 1.00
New vehicles 0.00 0.00 1.00
Used cars and trucks 0.00 0.00 1.00
Transportation services 0.00 0.00 1.00
Medical care services 0.00 0.00 1.00
Medical care commodities 0.00 0.00 1.00

It's important to note that not all categories may be tracked since 1801. This table and visualization use the earliest available data for each category.

### How to Calculate Inflation Rate for \$1, 1801 to 1802

This inflation calculator uses the following inflation rate formula:

CPI in 1802CPI in 1801
×
1801 USD value
=
1802 USD value

Then plug in historical CPI values. The U.S. CPI was 12.7 in the year 1801 and 10.7 in 1802:

10.712.7
×
\$1
=
\$0.84

\$1 in 1801 has the same "purchasing power" or "buying power" as \$0.84 in 1802.

To get the total inflation rate for the 1 years between 1801 and 1802, we use the following formula:

CPI in 1802 - CPI in 1801CPI in 1801
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

10.7 - 12.712.7
×
100
=
-16%

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

• Formation of the United Kingdom of Great Britain and Ireland, after the Irish Parliament voted to join the Union.
• Giuseppe Piazzi, an Italian monk, discovers Ceres a dwarf planet.
• Thomas Jefferson becomes the first US President to be inaugurated in Washington D.C.

### 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 1802 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 23 Oct. 2019, https://www.officialdata.org/inflation-rate-in-1802.