U.S. inflation rate in 1780: 12.30%

Inflation in 1780 and its effect on dollar value

$1 in 1779 is equivalent in purchasing power to about $1.12 in 1780. The dollar had an average inflation rate of 12.30% per year between 1779 and 1780, producing a cumulative price increase of 12.30%. 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.

This means that prices in 1780 are 1.12 times as high as average prices since 1779, according to the Bureau of Labor Statistics consumer price index.

The inflation rate in 1779 was -11.59%. The inflation rate in 1780 was 12.30%. The 1780 inflation rate is higher compared to the average inflation rate of 1.29% per year between 1780 and 2024.

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.


Inflation from 1779 to 1780
Average inflation rate12.30%
Converted amount
$1 base
$1.12
Price difference
$1 base
$0.12
CPI in 177912.200
CPI in 178013.700
Inflation in 1779-11.59%
Inflation in 178012.30%
$1 in 1779$1.12 in 1780

Recent USD inflation
Annual Rate, the Bureau of Labor Statistics CPI
Download

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. 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 1779 and 1780.

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

CategoryAvg Inflation (%)Total Inflation (%)$1 in 1779 → 1780
Food and beverages0.000.001.00
Housing0.000.001.00
Apparel0.000.001.00
Transportation0.000.001.00
Medical care0.000.001.00
Recreation0.000.001.00
Education and communication0.000.001.00
Other goods and services0.000.001.00

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

Our calculations use the following inflation rate formula to calculate the change in value between 1779 and 1780:

CPI in 1780 CPI 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%

Data source & citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Price index data from 1774 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University and from the American Antiquarian Society. Price index data from 1634 to 1773 is from the American Antiquarian Society, using British pound equivalents.

You may use the following MLA citation for this page: “Inflation Rate in 1780 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 12 Oct. 2024, https://www.officialdata.org/inflation-rate-in-1780.

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 1779 to 1780
Average inflation rate12.30%
Converted amount
$1 base
$1.12
Price difference
$1 base
$0.12
CPI in 177912.200
CPI in 178013.700
Inflation in 1779-11.59%
Inflation in 178012.30%
$1 in 1779$1.12 in 1780