# U.S. inflation rate in 1940: 0.72%

## Inflation Calculator

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### Inflation since 1940 and its effect on dollar value

The consumer price index (CPI) in 1940 was 14. It was 13.9 in the previous year. This change in CPI is used by the Bureau of Labor Statistics to calculate inflation.

According to the Bureau of Labor Statistics consumer price index, the dollar experienced an average inflation rate of 3.77% per year. Prices in 2018 are 1697.1% higher than prices in 1940.

In other words, \$100 in 1940 is equivalent in purchasing power to \$1,797.07 in 2018, a difference of \$1,697.07 over 78 years.

The current inflation rate is now 2.80%1. If this number holds, \$100 today will be equivalent to \$102.80 next year. The current inflation rate page gives more detail on the latest official inflation rates.

 Cumulative price change 1697.07% Average inflation rate 3.77% Converted amount (\$100 base) \$1,797.07 Price difference (\$100 base) \$1,697.07 CPI in 1940 14 CPI in 2018 251.59

#### Inflation rates for specific categories

Admission to sporting events · Legal services · Juices and nonalcoholic drinks · More

S&P 500 price · S&P 500 earnings · Shiller P/E

### How to calculate the inflation rate for \$100 since 1940

This inflation calculator uses the following inflation rate formula:

CPI in 2018 / CPI in 1940 * 1940 USD value = 2018 USD value

Then plug in historical CPI values. The U.S. CPI was 14 in the year 1940 and 251.59 in 2018:

251.59 / 14 * \$100 = \$1,797.07

\$100 in 1940 has the same "purchasing power" or "buying power" as \$1,797.07 in 2018.

Here are calculations of buying power over time for \$100 in 1940 (price index tracking began in 1913). Each of these USD amounts below is equivalent in terms of what it could buy at the time:
Year USD Value Inflation Rate
1940 \$100.00 0.72%
1941 \$105.00 5.00%
1942 \$116.43 10.88%
1943 \$123.57 6.13%
1944 \$125.71 1.73%
1945 \$128.57 2.27%
1946 \$139.29 8.33%
1947 \$159.29 14.36%
1948 \$172.14 8.07%
1949 \$170.00 -1.24%
1950 \$172.14 1.26%
1951 \$185.71 7.88%
1952 \$189.29 1.92%
1953 \$190.71 0.75%
1954 \$192.14 0.75%
1955 \$191.43 -0.37%
1956 \$194.29 1.49%
1957 \$200.71 3.31%
1958 \$206.43 2.85%
1959 \$207.86 0.69%
1960 \$211.43 1.72%
1961 \$213.57 1.01%
1962 \$215.71 1.00%
1963 \$218.57 1.32%
1964 \$221.43 1.31%
1965 \$225.00 1.61%
1966 \$231.43 2.86%
1967 \$238.57 3.09%
1968 \$248.57 4.19%
1969 \$262.14 5.46%
1970 \$277.14 5.72%
1971 \$289.29 4.38%
1972 \$298.57 3.21%
1973 \$317.14 6.22%
1974 \$352.14 11.04%
1975 \$384.29 9.13%
1976 \$406.43 5.76%
1977 \$432.86 6.50%
1978 \$465.71 7.59%
1979 \$518.57 11.35%
1980 \$588.57 13.50%
1981 \$649.29 10.32%
1982 \$689.29 6.16%
1983 \$711.43 3.21%
1984 \$742.14 4.32%
1985 \$768.57 3.56%
1986 \$782.86 1.86%
1987 \$811.43 3.65%
1988 \$845.00 4.14%
1989 \$885.71 4.82%
1990 \$933.57 5.40%
1991 \$972.86 4.21%
1992 \$1,002.14 3.01%
1993 \$1,032.14 2.99%
1994 \$1,058.57 2.56%
1995 \$1,088.57 2.83%
1996 \$1,120.71 2.95%
1997 \$1,146.43 2.29%
1998 \$1,164.29 1.56%
1999 \$1,190.00 2.21%
2000 \$1,230.00 3.36%
2001 \$1,265.00 2.85%
2002 \$1,285.00 1.58%
2003 \$1,314.29 2.28%
2004 \$1,349.29 2.66%
2005 \$1,395.00 3.39%
2006 \$1,440.00 3.23%
2007 \$1,481.01 2.85%
2008 \$1,537.88 3.84%
2009 \$1,532.41 -0.36%
2010 \$1,557.54 1.64%
2011 \$1,606.71 3.16%
2012 \$1,639.96 2.07%
2013 \$1,663.98 1.46%
2014 \$1,690.97 1.62%
2015 \$1,692.98 0.12%
2016 \$1,714.34 1.26%
2017 \$1,748.47 1.99%
2018 \$1,797.07 2.78%*
* Not final. See inflation summary for latest details.

### Inflation Data Source

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 1940 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 13 Jun. 2018, https://www.officialdata.org/inflation-rate-in-1940.