According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,080.74% higher in 2025 versus 1940 (a $5,617,997,673.72 difference in value).
Between 1940 and 2025: Chicago experienced an average inflation rate of 3.69% per year. This rate of change indicates significant inflation. In other words, $270,000,000 in Chicago in the year 1940 would cost $5,887,997,673.72 in 2025 for an equivalent purchase. Compared to the overall inflation rate of 3.75% during this same period, inflation in Chicago was lower.
In the year 1940: Pricing changed by 0.55%, which is significantly below the average yearly change in Chicago during the 1940-2025 time period. Compared to inflation for all items in 1940 (0.72%), inflation in Chicago was lower.
Below are calculations of equivalent buying power in Chicago, over time, for $270,000,000 beginning in 1940. Each of the amounts below is equivalent in terms of what it could buy at the time:
| Year | USD Value | Inflation Rate |
|---|---|---|
| 1940 | $270,000,000.00 | 0.55% |
| 1941 | $284,193,353.47 | 5.26% |
| 1942 | $312,416,918.43 | 9.93% |
| 1943 | $329,873,111.78 | 5.59% |
| 1944 | $334,930,513.60 | 1.53% |
| 1945 | $342,108,761.33 | 2.14% |
| 1946 | $372,616,314.20 | 8.92% |
| 1947 | $432,815,709.97 | 16.16% |
| 1948 | $470,501,510.57 | 8.71% |
| 1949 | $470,012,084.59 | -0.10% |
| 1950 | $474,743,202.42 | 1.01% |
| 1951 | $512,102,719.03 | 7.87% |
| 1952 | $523,196,374.62 | 2.17% |
| 1953 | $527,764,350.45 | 0.87% |
| 1954 | $535,595,166.16 | 1.48% |
| 1955 | $539,184,290.03 | 0.67% |
| 1956 | $546,688,821.75 | 1.39% |
| 1957 | $564,471,299.09 | 3.25% |
| 1958 | $581,601,208.46 | 3.03% |
| 1959 | $586,332,326.28 | 0.81% |
| 1960 | $594,489,425.98 | 1.39% |
| 1961 | $597,425,981.87 | 0.49% |
| 1962 | $603,625,377.64 | 1.04% |
| 1963 | $609,661,631.42 | 1.00% |
| 1964 | $612,108,761.33 | 0.40% |
| 1965 | $620,265,861.03 | 1.33% |
| 1966 | $638,864,048.34 | 3.00% |
| 1967 | $655,504,531.72 | 2.60% |
| 1968 | $683,238,670.69 | 4.23% |
| 1969 | $720,598,187.31 | 5.47% |
| 1970 | $761,873,111.78 | 5.73% |
| 1971 | $791,891,238.67 | 3.94% |
| 1972 | $814,404,833.84 | 2.84% |
| 1973 | $865,468,277.95 | 6.27% |
| 1974 | $956,990,936.56 | 10.57% |
| 1975 | $1,032,525,679.76 | 7.89% |
| 1976 | $1,081,957,703.93 | 4.79% |
| 1977 | $1,149,987,915.41 | 6.29% |
| 1978 | $1,249,993,957.70 | 8.70% |
| 1979 | $1,405,957,703.93 | 12.48% |
| 1980 | $1,608,743,202.42 | 14.42% |
| 1981 | $1,762,749,244.71 | 9.57% |
| 1982 | $1,882,984,894.26 | 6.82% |
| 1983 | $1,958,030,211.48 | 3.99% |
| 1984 | $2,031,933,534.74 | 3.77% |
| 1985 | $2,108,610,271.90 | 3.77% |
| 1986 | $2,152,658,610.27 | 2.09% |
| 1987 | $2,241,407,854.98 | 4.12% |
| 1988 | $2,329,015,105.74 | 3.91% |
| 1989 | $2,446,803,625.38 | 5.06% |
| 1990 | $2,578,296,072.51 | 5.37% |
| 1991 | $2,682,870,090.63 | 4.06% |
| 1992 | $2,761,504,531.72 | 2.93% |
| 1993 | $2,846,664,652.57 | 3.08% |
| 1994 | $2,908,984,894.26 | 2.19% |
| 1995 | $3,001,486,404.83 | 3.18% |
| 1996 | $3,081,752,265.86 | 2.67% |
| 1997 | $3,166,096,676.74 | 2.74% |
| 1998 | $3,229,885,196.37 | 2.01% |
| 1999 | $3,296,773,413.90 | 2.07% |
| 2000 | $3,402,652,567.98 | 3.21% |
| 2001 | $3,491,238,670.69 | 2.60% |
| 2002 | $3,546,870,090.63 | 1.59% |
| 2003 | $3,612,126,888.22 | 1.84% |
| 2004 | $3,692,882,175.23 | 2.24% |
| 2005 | $3,804,634,441.09 | 3.03% |
| 2006 | $3,882,616,314.20 | 2.05% |
| 2007 | $4,009,721,873.11 | 3.27% |
| 2008 | $4,160,817,462.24 | 3.77% |
| 2009 | $4,111,081,993.96 | -1.20% |
| 2010 | $4,167,372,507.55 | 1.37% |
| 2011 | $4,281,188,519.64 | 2.73% |
| 2012 | $4,346,195,709.97 | 1.52% |
| 2013 | $4,395,929,546.83 | 1.14% |
| 2014 | $4,472,722,114.80 | 1.75% |
| 2015 | $4,459,499,456.19 | -0.30% |
| 2016 | $4,489,049,365.56 | 0.66% |
| 2017 | $4,573,418,247.73 | 1.88% |
| 2018 | $4,653,584,592.15 | 1.75% |
| 2019 | $4,721,603,383.69 | 1.46% |
| 2020 | $4,774,306,404.83 | 1.12% |
| 2021 | $4,975,682,356.50 | 4.22% |
| 2022 | $5,351,502,779.46 | 7.55% |
| 2023 | $5,529,524,954.68 | 3.33% |
| 2024 | $5,720,900,302.11 | 3.46% |
| 2025 | $5,887,997,673.72 | 2.92%* |
* Not final. See inflation summary for latest details.
** Extended periods of 0% inflation usually indicate incomplete underlying data. This can manifest as a sharp increase in inflation later on.
Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for Chicago, Illinois:
| Year | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| CPI | 10.000 | 10.017 | 10.317 | 11.758 | 13.733 | 16.667 | 19.850 | 18.175 | 17.167 | 17.375 | 17.717 | 18.108 | 18.425 | 18.258 | 17.692 | 17.650 | 17.458 | 15.958 | 14.083 | 12.633 | 12.717 | 13.267 | 13.533 | 14.092 | 13.992 | 13.717 | 13.792 | 14.517 | 15.958 | 16.850 | 17.108 | 17.475 | 19.033 | 22.108 | 24.033 | 24.008 | 24.250 | 26.158 | 26.725 | 26.958 | 27.358 | 27.542 | 27.925 | 28.833 | 29.708 | 29.950 | 30.367 | 30.517 | 30.833 | 31.142 | 31.267 | 31.683 | 32.633 | 33.483 | 34.900 | 36.808 | 38.917 | 40.450 | 41.600 | 44.208 | 48.883 | 52.742 | 55.267 | 58.742 | 63.850 | 71.817 | 82.175 | 90.042 | 96.183 | 100.017 | 103.792 | 107.708 | 109.958 | 114.492 | 118.967 | 124.983 | 131.700 | 137.042 | 141.058 | 145.408 | 148.592 | 153.317 | 157.417 | 161.725 | 164.983 | 168.400 | 173.808 | 178.333 | 181.175 | 184.508 | 188.633 | 194.342 | 198.325 | 204.818 | 212.536 | 209.995 | 212.870 | 218.684 | 222.005 | 224.545 | 228.468 | 227.792 | 229.302 | 233.611 | 237.706 | 241.181 | 243.873 | 254.159 | 273.356 | 282.450 | 292.225 | 300.760 |