According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,080.74% higher in 2025 versus 1940 (a $256,881,464,224.61 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, $12,345,678,900 in Chicago in the year 1940 would cost $269,227,143,124.61 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 $12,345,678,900 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 | $12,345,678,900.00 | 0.55% |
| 1941 | $12,994,666,250.03 | 5.26% |
| 1942 | $14,285,181,325.38 | 9.93% |
| 1943 | $15,083,361,169.67 | 5.59% |
| 1944 | $15,314,609,535.77 | 1.53% |
| 1945 | $15,642,833,023.14 | 2.14% |
| 1946 | $17,037,782,844.47 | 8.92% |
| 1947 | $19,790,384,363.56 | 16.16% |
| 1948 | $21,513,557,672.27 | 8.71% |
| 1949 | $21,491,178,798.13 | -0.10% |
| 1950 | $21,707,507,914.80 | 1.01% |
| 1951 | $23,415,761,974.08 | 7.87% |
| 1952 | $23,923,016,454.56 | 2.17% |
| 1953 | $24,131,885,946.53 | 0.87% |
| 1954 | $24,489,947,932.75 | 1.48% |
| 1955 | $24,654,059,676.44 | 0.67% |
| 1956 | $24,997,202,413.23 | 1.39% |
| 1957 | $25,810,301,506.95 | 3.25% |
| 1958 | $26,593,562,101.81 | 3.03% |
| 1959 | $26,809,891,218.49 | 0.81% |
| 1960 | $27,182,872,454.14 | 1.39% |
| 1961 | $27,317,145,698.97 | 0.49% |
| 1962 | $27,600,611,438.07 | 1.04% |
| 1963 | $27,876,617,552.45 | 1.00% |
| 1964 | $27,988,511,923.14 | 0.40% |
| 1965 | $28,361,493,158.79 | 1.33% |
| 1966 | $29,211,890,376.07 | 3.00% |
| 1967 | $29,972,772,096.80 | 2.60% |
| 1968 | $31,240,908,298.01 | 4.23% |
| 1969 | $32,949,162,357.28 | 5.47% |
| 1970 | $34,836,447,409.67 | 5.73% |
| 1971 | $36,209,018,356.86 | 3.94% |
| 1972 | $37,238,446,567.25 | 2.84% |
| 1973 | $39,573,309,102.42 | 6.27% |
| 1974 | $43,758,158,566.40 | 10.57% |
| 1975 | $47,211,964,808.52 | 7.89% |
| 1976 | $49,472,231,096.56 | 4.79% |
| 1977 | $52,582,894,601.87 | 6.29% |
| 1978 | $57,155,644,550.94 | 8.70% |
| 1979 | $64,287,045,776.56 | 12.48% |
| 1980 | $73,559,359,294.80 | 14.42% |
| 1981 | $80,601,245,023.87 | 9.57% |
| 1982 | $86,098,988,437.34 | 6.82% |
| 1983 | $89,530,415,805.32 | 3.99% |
| 1984 | $92,909,625,800.30 | 3.77% |
| 1985 | $96,415,649,415.41 | 3.77% |
| 1986 | $98,429,748,087.92 | 2.09% |
| 1987 | $102,487,783,931.78 | 4.12% |
| 1988 | $106,493,602,402.66 | 3.91% |
| 1989 | $111,879,451,445.44 | 5.06% |
| 1990 | $117,891,908,964.11 | 5.37% |
| 1991 | $122,673,528,405.14 | 4.06% |
| 1992 | $126,269,067,516.80 | 2.93% |
| 1993 | $130,162,991,616.98 | 3.08% |
| 1994 | $133,012,568,257.34 | 2.19% |
| 1995 | $137,242,175,469.61 | 3.18% |
| 1996 | $140,912,310,828.40 | 2.67% |
| 1997 | $144,768,936,805.02 | 2.74% |
| 1998 | $147,685,650,067.79 | 2.01% |
| 1999 | $150,744,096,200.12 | 2.07% |
| 2000 | $155,585,392,638.85 | 3.21% |
| 2001 | $159,635,968,858.01 | 2.60% |
| 2002 | $162,179,700,885.14 | 1.59% |
| 2003 | $165,163,550,770.33 | 1.84% |
| 2004 | $168,856,065,003.26 | 2.24% |
| 2005 | $173,965,907,931.66 | 3.03% |
| 2006 | $177,531,608,544.47 | 2.05% |
| 2007 | $183,343,476,754.61 | 3.27% |
| 2008 | $190,252,282,778.79 | 3.77% |
| 2009 | $187,978,141,588.79 | -1.20% |
| 2010 | $190,552,010,499.76 | 1.37% |
| 2011 | $195,756,217,680.78 | 2.73% |
| 2012 | $198,728,654,340.16 | 1.52% |
| 2013 | $201,002,720,933.92 | 1.14% |
| 2014 | $204,514,040,882.57 | 1.75% |
| 2015 | $203,909,438,299.58 | -0.30% |
| 2016 | $205,260,600,123.85 | 0.66% |
| 2017 | $209,118,345,044.17 | 1.88% |
| 2018 | $212,783,930,031.89 | 1.75% |
| 2019 | $215,894,071,363.48 | 1.46% |
| 2020 | $218,303,903,127.01 | 1.12% |
| 2021 | $227,511,765,487.73 | 4.22% |
| 2022 | $244,696,055,361.57 | 7.55% |
| 2023 | $252,836,072,444.63 | 3.33% |
| 2024 | $261,586,659,810.45 | 3.46% |
| 2025 | $269,227,143,124.61 | 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 |