$100 in 1982 is worth $280.80 in 2021

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Value of $100 from 1982 to 2021

$100 in 1982 is equivalent in purchasing power to about $280.80 in 2021, an increase of $180.80 over 39 years. The dollar had an average inflation rate of 2.68% per year between 1982 and 2021, producing a cumulative price increase of 180.80%.

This means that prices in 2021 are 2.81 times higher than average prices since 1982, according to the Bureau of Labor Statistics consumer price index.

The inflation rate in 1982 was 6.16%. The inflation rate in 2021 was 4.70%. The 2021 inflation rate is lower compared to the average inflation rate of 9.30% per year between 2021 and 2022.


Inflation from 1982 to 2021
Cumulative price change180.80%
Average inflation rate2.68%
Converted amount ($100 base)$280.80
Price difference ($100 base)$180.80
CPI in 198296.500
CPI in 2021270.970
Inflation in 19826.16%
Inflation in 20214.70%
$100 in 1982$280.80 in 2021

USD inflation since 1982
Annual Rate, the Bureau of Labor Statistics CPI
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Buying power of $100 in 1982

This chart shows a calculation of buying power equivalence for $100 in 1982 (price index tracking began in 1635).

For example, if you started with $100, you would need to end with $280.80 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When $100 is equivalent to $280.80 over time, that means that the "real value" of a single U.S. dollar decreases over time. In other words, a dollar will pay for fewer items at the store.

This effect explains how inflation erodes the value of a dollar over time. By calculating the value in 1982 dollars, the chart below shows how $100 is worth less over 39 years.

According to the Bureau of Labor Statistics, each of these USD amounts below is equal in terms of what it could buy at the time:

Dollar inflation: 1982-2021
YearDollar ValueInflation Rate
1982$100.006.16%
1983$103.213.21%
1984$107.674.32%
1985$111.503.56%
1986$113.581.86%
1987$117.723.65%
1988$122.594.14%
1989$128.504.82%
1990$135.445.40%
1991$141.144.21%
1992$145.393.01%
1993$149.742.99%
1994$153.582.56%
1995$157.932.83%
1996$162.592.95%
1997$166.322.29%
1998$168.911.56%
1999$172.642.21%
2000$178.453.36%
2001$183.522.85%
2002$186.421.58%
2003$190.672.28%
2004$195.752.66%
2005$202.383.39%
2006$208.913.23%
2007$214.862.85%
2008$223.113.84%
2009$222.32-0.36%
2010$225.961.64%
2011$233.103.16%
2012$237.922.07%
2013$241.411.46%
2014$245.321.62%
2015$245.610.12%
2016$248.711.26%
2017$254.012.13%
2018$260.342.49%
2019$264.931.76%
2020$268.201.23%
2021$280.804.70%
2022$306.919.30%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 33 more rows

This conversion table shows various other 1982 amounts in 2021 dollars, based on the 180.80% change in prices:

Conversion: 1982 dollars in 2021
Initial valueEquivalent value
$1 dollar in 1982$2.81 dollars in 2021
$5 dollars in 1982$14.04 dollars in 2021
$10 dollars in 1982$28.08 dollars in 2021
$50 dollars in 1982$140.40 dollars in 2021
$100 dollars in 1982$280.80 dollars in 2021
$500 dollars in 1982$1,403.99 dollars in 2021
$1,000 dollars in 1982$2,807.98 dollars in 2021
$5,000 dollars in 1982$14,039.91 dollars in 2021
$10,000 dollars in 1982$28,079.81 dollars in 2021
$50,000 dollars in 1982$140,399.05 dollars in 2021
$100,000 dollars in 1982$280,798.10 dollars in 2021
$500,000 dollars in 1982$1,403,990.50 dollars in 2021
$1,000,000 dollars in 1982$2,807,981.00 dollars in 2021

Inflation by City

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 1982 to 2021 (figures shown are purchasing power equivalents of $100):

  • Atlanta, Georgia: 2.60% average rate, $100 → $272.36, cumulative change of 172.36%

Atlanta, Georgia experienced the highest rate of inflation during the 39 years between 1982 and 2021 (2.60%).

Atlanta, Georgia experienced the lowest rate of inflation during the 39 years between 1982 and 2021 (2.60%).

Note that some locations showing 0% inflation may have not yet reported latest data.


Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £100.00 in 1982 would be equivalent to £368.47 in 2021, an absolute change of £268.47 and a cumulative change of 268.47%.

In Canada, CA$100.00 in 1982 would be equivalent to CA$258.13 in 2021, an absolute change of CA$158.13 and a cumulative change of 158.13%.

Compare these numbers to the US's overall absolute change of $180.80 and total percent change of 180.80%.


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.

Between 1982 and 2021:

This chart shows the average rate of inflation for select CPI categories between 1982 and 2021.

Compare these values to the overall average of 2.68% per year:

CategoryAvg Inflation (%)Total Inflation (%)$100 in 1982 → 2021
Food and beverages2.72184.49284.49
Housing2.77189.75289.75
Apparel0.5523.74123.74
Transportation2.25137.81237.81
Medical care4.55467.58567.58
Recreation1.1556.29156.29
Education and communication1.84103.71203.71
Other goods and services4.33422.65522.65

The graph below compares inflation in categories of goods over time. Click on a category such as "Food" to toggle it on or off:

For all these visualizations, it's important to note that not all categories may have been tracked since 1982. This table and charts use the earliest available data for each category.



How to calculate inflation rate for $100, 1982 to 2021

Our calculations use the following inflation rate formula to calculate the change in value between 1982 and 2021:

CPI in 2021 CPI in 1982
×
1982 USD value
=
2021 USD value

Then plug in historical CPI values. The U.S. CPI was 96.5 in the year 1982 and 270.97016666667 in 2021:

270.9701666666796.5
×
$100
=
$280.80

$100 in 1982 has the same "purchasing power" or "buying power" as $280.80 in 2021.

To get the total inflation rate for the 39 years between 1982 and 2021, we use the following formula:

CPI in 2021 - CPI in 1982CPI in 1982
×
100
=
Cumulative inflation rate (39 years)

Plugging in the values to this equation, we get:

270.97016666667 - 96.596.5
×
100
=
181%

Alternate Measurements of Inflation

There are multiple ways to measure inflation. Published rates of inflation will vary depending on methodology. The Consumer Price Index, used above, is the most common standard used globally.

Alternative measurements are sometimes used based on context and economic/political circumstances. Below are a few examples of alternative measurements.

Personal Consumption Expenditures (PCE) Inflation

The PCE Price Index is the U.S. Federal Reserve's preferred measure of inflation, compiled by the Bureau of Economic Analysis. It measures the change in prices of goods and services purchased by consumers.

The PCE Price Index changed by 2.31% per year on average between 1982 and 2021. The total PCE inflation between these dates was 143.92%. In 1982, PCE inflation was 5.55%.

This means that the PCE Index equates $100 in 1982 with $243.92 in 2021, a difference of $143.92. Compare this to the standard CPI measurement, which equates $100 with $280.80. The PCE measured -36.88% inflation compared to standard CPI.

For more information on the difference between PCE and CPI, see this analysis provided by the Bureau of Labor Statistics.

Core Inflation

Also of note is the Core CPI, which uses the standard CPI but omits the more volatile categories of food and energy.

Core inflation averaged 2.76% per year between 1982 and 2021 (vs all-CPI inflation of 2.68%), for an inflation total of 189.27%. In 1982, core inflation was 7.40%.

When using the core inflation measurement, $100 in 1982 is equivalent in buying power to $289.27 in 2021, a difference of $189.27. Recall that the converted amount is $280.80 when all items including food and energy are measured.


Comparison to S&P 500 Index

The average inflation rate of 2.68% has a compounding effect between 1982 and 2021. As noted above, this yearly inflation rate compounds to produce an overall price difference of 180.80% over 39 years.

To help put this inflation into perspective, if we had invested $100 in the S&P 500 index in 1982, our investment would be nominally worth approximately $10,231.26 in 2021. This is a return on investment of 10,131.26%, with an absolute return of $10,131.26 on top of the original $100.

These numbers are not inflation adjusted, so they are considered nominal. In order to evaluate the real return on our investment, we must calculate the return with inflation taken into account.

The compounding effect of inflation would account for 64.39% of returns ($6,587.62) during this period. This means the inflation-adjusted real return of our $100 investment is $3,543.64. You may also want to account for capital gains tax, which would take your real return down to around $3,012 for most people.

Investment in S&P 500 Index, 1982-2021
Original AmountFinal AmountChange
Nominal$100$10,231.2610,131.26%
Real
Inflation Adjusted
$100$3,643.643,543.64%

Information displayed above may differ slightly from other S&P 500 calculators. Minor discrepancies can occur because we use the latest CPI data for inflation, annualized inflation numbers for previous years, and we compute S&P price and dividends from January of 1982 to latest available data for 2021 using average monthly close price.

For more details on the S&P 500 between 1982 and 2021, see the stock market returns calculator.


Data source & citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1634 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.

You may use the following MLA citation for this page: “$100 in 1982 → 2021 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 1 Oct. 2022, https://www.officialdata.org/us/inflation/1982?endYear=2021&amount=100.

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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» Read more about inflation and investment.

Inflation from 1982 to 2021
Cumulative price change180.80%
Average inflation rate2.68%
Converted amount ($100 base)$280.80
Price difference ($100 base)$180.80
CPI in 198296.500
CPI in 2021270.970
Inflation in 19826.16%
Inflation in 20214.70%
$100 in 1982$280.80 in 2021