U.S. inflation rate in 1780: 12.30%

Inflation Calculator

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Inflation in 1780 and Its Effect on Dollar Value

Purchasing power decreased by 12.30% in 1780 compared to 1779. On average, you would have to spend 12.30% more money in 1780 than in 1779 for the same item.

In other words, \$1 in 1779 is equivalent in purchasing power to about \$1.12 in 1780.

The 1779 inflation rate was -11.59%. The inflation rate in 1780 was 12.30%. The 1780 inflation rate is higher compared to the average inflation rate of 1.23% per year between 1780 and 2020.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1780 was 13.70. It was 12.20 in the previous year, 1779. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation.

 Average inflation rate 12.30% Converted amount (\$1 base) \$1.12 Price difference (\$1 base) \$0.12 CPI in 1779 12.200 CPI in 1780 13.700 Inflation in 1779 -11.59% Inflation in 1780 12.30%

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

Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1779 would be equivalent to £0.97 in 1780, an absolute change of £-0.03 and a cumulative change of -3.08%.

Compare these numbers to the US's overall absolute change of \$0.12 and total percent change of 12.30%.

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 1779 and 1780.

Compare these values to the overall average of 12.30% per year:

Category Avg Inflation (%) Total Inflation (%) \$1 in 1779 → 1780
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 1779. This table and charts use the earliest available data for each category.

How to Calculate Inflation Rate for \$1, 1779 to 1780

This inflation calculator uses the following inflation rate formula:

CPI in 1780CPI in 1779
×
1779 USD value
=
1780 USD value

Then plug in historical CPI values. The U.S. CPI was 12.2 in the year 1779 and 13.7 in 1780:

13.712.2
×
\$1
=
\$1.12

\$1 in 1779 has the same "purchasing power" or "buying power" as \$1.12 in 1780.

To get the total inflation rate for the 1 years between 1779 and 1780, we use the following formula:

CPI in 1780 - CPI in 1779CPI in 1779
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

13.7 - 12.212.2
×
100
=
12%

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

• United States establishes the Army Corps of Engineers
• Captain James Cook makes the last notation in the Discovery ship's log book.
• Ching-Thang Khomba becomes King of Manipur after coronation.

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 1780 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 2 Apr. 2020, https://www.officialdata.org/inflation-rate-in-1780.