$100 in 1940 is worth $1,692.98 in 2015

Value of $100 from 1940 to 2015

$100 in 1940 is equivalent in purchasing power to about $1,692.98 in 2015, an increase of $1,592.98 over 75 years. The dollar had an average inflation rate of 3.84% per year between 1940 and 2015, producing a cumulative price increase of 1,592.98%.

This means that prices in 2015 are 16.93 times as high as average prices since 1940, according to the Bureau of Labor Statistics consumer price index.

The inflation rate in 1940 was 0.72%. The inflation rate in 2015 was 0.12%. The 2015 inflation rate is lower compared to the average inflation rate of 3.04% per year between 2015 and 2024.


Inflation from 1940 to 2015
Cumulative price change1,592.98%
Average inflation rate3.84%
Converted amount
$100 base
$1,692.98
Price difference
$100 base
$1,592.98
CPI in 194014.000
CPI in 2015237.017
Inflation in 19400.72%
Inflation in 20150.12%
$100 in 1940$1,692.98 in 2015

USD inflation since 1940
Annual Rate, the Bureau of Labor Statistics CPI
Download

Buying power of $100 in 1940

This chart shows a calculation of buying power equivalence for $100 in 1940 (price index tracking began in 1635).

For example, if you started with $100, you would need to end with $1,692.98 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When $100 is equivalent to $1,692.98 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 1940 dollars, the chart below shows how $100 is worth less over 75 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: 1940-2015
YearDollar ValueInflation Rate
1940$100.000.72%
1941$105.005.00%
1942$116.4310.88%
1943$123.576.13%
1944$125.711.73%
1945$128.572.27%
1946$139.298.33%
1947$159.2914.36%
1948$172.148.07%
1949$170.00-1.24%
1950$172.141.26%
1951$185.717.88%
1952$189.291.92%
1953$190.710.75%
1954$192.140.75%
1955$191.43-0.37%
1956$194.291.49%
1957$200.713.31%
1958$206.432.85%
1959$207.860.69%
1960$211.431.72%
1961$213.571.01%
1962$215.711.00%
1963$218.571.32%
1964$221.431.31%
1965$225.001.61%
1966$231.432.86%
1967$238.573.09%
1968$248.574.19%
1969$262.145.46%
1970$277.145.72%
1971$289.294.38%
1972$298.573.21%
1973$317.146.22%
1974$352.1411.04%
1975$384.299.13%
1976$406.435.76%
1977$432.866.50%
1978$465.717.59%
1979$518.5711.35%
1980$588.5713.50%
1981$649.2910.32%
1982$689.296.16%
1983$711.433.21%
1984$742.144.32%
1985$768.573.56%
1986$782.861.86%
1987$811.433.65%
1988$845.004.14%
1989$885.714.82%
1990$933.575.40%
1991$972.864.21%
1992$1,002.143.01%
1993$1,032.142.99%
1994$1,058.572.56%
1995$1,088.572.83%
1996$1,120.712.95%
1997$1,146.432.29%
1998$1,164.291.56%
1999$1,190.002.21%
2000$1,230.003.36%
2001$1,265.002.85%
2002$1,285.001.58%
2003$1,314.292.28%
2004$1,349.292.66%
2005$1,395.003.39%
2006$1,440.003.23%
2007$1,481.012.85%
2008$1,537.883.84%
2009$1,532.41-0.36%
2010$1,557.541.64%
2011$1,606.713.16%
2012$1,639.962.07%
2013$1,663.981.46%
2014$1,690.971.62%
2015$1,692.980.12%
2016$1,714.341.26%
2017$1,750.862.13%
2018$1,794.502.49%
2019$1,826.131.76%
2020$1,848.651.23%
2021$1,935.504.70%
2022$2,090.408.00%
2023$2,176.444.12%
2024$2,216.611.85%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 69 more rows

This conversion table shows various other 1940 amounts in 2015 dollars, based on the 1,592.98% change in prices:

Conversion: 1940 dollars in 2015
Initial valueEquivalent value
$1 dollar in 1940$16.93 dollars in 2015
$5 dollars in 1940$84.65 dollars in 2015
$10 dollars in 1940$169.30 dollars in 2015
$50 dollars in 1940$846.49 dollars in 2015
$100 dollars in 1940$1,692.98 dollars in 2015
$500 dollars in 1940$8,464.89 dollars in 2015
$1,000 dollars in 1940$16,929.79 dollars in 2015
$5,000 dollars in 1940$84,648.93 dollars in 2015
$10,000 dollars in 1940$169,297.86 dollars in 2015
$50,000 dollars in 1940$846,489.29 dollars in 2015
$100,000 dollars in 1940$1,692,978.57 dollars in 2015
$500,000 dollars in 1940$8,464,892.86 dollars in 2015
$1,000,000 dollars in 1940$16,929,785.71 dollars in 2015

Inflation by City

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 1940 to 2015 (figures shown are purchasing power equivalents of $100):

San Francisco, California experienced the highest rate of inflation during the 75 years between 1940 and 2015 (4.10%).

Detroit, Michigan experienced the lowest rate of inflation during the 75 years between 1940 and 2015 (3.72%).

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 1940 would be equivalent to £5,049.50 in 2015, an absolute change of £4,949.50 and a cumulative change of 4,949.50%.

In Canada, CA$100.00 in 1940 would be equivalent to CA$1,587.04 in 2015, an absolute change of CA$1,487.04 and a cumulative change of 1,487.04%.

Compare these numbers to the US's overall absolute change of $1,592.98 and total percent change of 1,592.98%.


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 1940 and 2015.

Compare these values to the overall average of 3.84% per year:

CategoryAvg Inflation (%)Total Inflation (%)$100 in 1940 → 2015
Food and beverages4.152,017.112,117.11
Housing4.352,343.722,443.72
Apparel2.36477.16577.16
Transportation3.581,299.911,399.91
Medical care5.154,212.284,312.28
Recreation1.12130.82230.82
Education and communication2.21414.71514.71
Other goods and services5.284,652.074,752.07

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 1940. This table and charts use the earliest available data for each category.



How to calculate inflation rate for $100, 1940 to 2015

Our calculations use the following inflation rate formula to calculate the change in value between 1940 and 2015:

CPI in 2015 CPI in 1940
×
1940 USD value
=
2015 USD value

Then plug in historical CPI values. The U.S. CPI was 14 in the year 1940 and 237.017 in 2015:

237.01714
×
$100
=
$1,692.98

$100 in 1940 has the same "purchasing power" or "buying power" as $1,692.98 in 2015.

To get the total inflation rate for the 75 years between 1940 and 2015, we use the following formula:

CPI in 2015 - CPI in 1940CPI in 1940
×
100
=
Cumulative inflation rate (75 years)

Plugging in the values to this equation, we get:

237.017 - 1414
×
100
=
1,593%

Comparison to S&P 500 Index

The average inflation rate of 3.84% has a compounding effect between 1940 and 2015. As noted above, this yearly inflation rate compounds to produce an overall price difference of 1,592.98% over 75 years.

To help put this inflation into perspective, if we had invested $100 in the S&P 500 index in 1940, our investment would be nominally worth approximately $235,475.65 in 2015. This is a return on investment of 235,375.65%, with an absolute return of $235,375.65 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 94.09% of returns ($221,566.69) during this period. This means the inflation-adjusted real return of our $100 investment is $13,808.96. You may also want to account for capital gains tax, which would take your real return down to around $11,738 for most people.

Investment in S&P 500 Index, 1940-2015
Original AmountFinal AmountChange
Nominal$100$235,475.65235,375.65%
Real
Inflation Adjusted
$100$13,908.9613,808.96%

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 1940 to latest available data for 2015 using average monthly close price.

For more details on the S&P 500 between 1940 and 2015, 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. 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: “$100 in 1940 → 2015 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 28 Mar. 2024, https://www.officialdata.org/1940-dollars-in-2015?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.

Email · LinkedIn · Twitter


» Read more about inflation and investment.

Inflation from 1940 to 2015
Cumulative price change1,592.98%
Average inflation rate3.84%
Converted amount
$100 base
$1,692.98
Price difference
$100 base
$1,592.98
CPI in 194014.000
CPI in 2015237.017
Inflation in 19400.72%
Inflation in 20150.12%
$100 in 1940$1,692.98 in 2015