According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,080.74% higher in 2025 versus 1940 (a $174,782,149,848.94 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, $8,400,000,000 in Chicago in the year 1940 would cost $183,182,149,848.94 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 $8,400,000,000 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 | $8,400,000,000.00 | 0.55% |
| 1941 | $8,841,570,996.98 | 5.26% |
| 1942 | $9,719,637,462.24 | 9.93% |
| 1943 | $10,262,719,033.23 | 5.59% |
| 1944 | $10,420,060,422.96 | 1.53% |
| 1945 | $10,643,383,685.80 | 2.14% |
| 1946 | $11,592,507,552.87 | 8.92% |
| 1947 | $13,465,377,643.50 | 16.16% |
| 1948 | $14,637,824,773.41 | 8.71% |
| 1949 | $14,622,598,187.31 | -0.10% |
| 1950 | $14,769,788,519.64 | 1.01% |
| 1951 | $15,932,084,592.15 | 7.87% |
| 1952 | $16,277,220,543.81 | 2.17% |
| 1953 | $16,419,335,347.43 | 0.87% |
| 1954 | $16,662,960,725.08 | 1.48% |
| 1955 | $16,774,622,356.50 | 0.67% |
| 1956 | $17,008,096,676.74 | 1.39% |
| 1957 | $17,561,329,305.14 | 3.25% |
| 1958 | $18,094,259,818.73 | 3.03% |
| 1959 | $18,241,450,151.06 | 0.81% |
| 1960 | $18,495,226,586.10 | 1.39% |
| 1961 | $18,586,586,102.72 | 0.49% |
| 1962 | $18,779,456,193.35 | 1.04% |
| 1963 | $18,967,250,755.29 | 1.00% |
| 1964 | $19,043,383,685.80 | 0.40% |
| 1965 | $19,297,160,120.85 | 1.33% |
| 1966 | $19,875,770,392.75 | 3.00% |
| 1967 | $20,393,474,320.24 | 2.60% |
| 1968 | $21,256,314,199.40 | 4.23% |
| 1969 | $22,418,610,271.90 | 5.47% |
| 1970 | $23,702,719,033.23 | 5.73% |
| 1971 | $24,636,616,314.20 | 3.94% |
| 1972 | $25,337,039,274.92 | 2.84% |
| 1973 | $26,925,679,758.31 | 6.27% |
| 1974 | $29,773,051,359.52 | 10.57% |
| 1975 | $32,123,021,148.04 | 7.89% |
| 1976 | $33,660,906,344.41 | 4.79% |
| 1977 | $35,777,401,812.69 | 6.29% |
| 1978 | $38,888,700,906.34 | 8.70% |
| 1979 | $43,740,906,344.41 | 12.48% |
| 1980 | $50,049,788,519.64 | 14.42% |
| 1981 | $54,841,087,613.29 | 9.57% |
| 1982 | $58,581,752,265.86 | 6.82% |
| 1983 | $60,916,495,468.28 | 3.99% |
| 1984 | $63,215,709,969.79 | 3.77% |
| 1985 | $65,601,208,459.21 | 3.77% |
| 1986 | $66,971,601,208.46 | 2.09% |
| 1987 | $69,732,688,821.75 | 4.12% |
| 1988 | $72,458,247,734.14 | 3.91% |
| 1989 | $76,122,779,456.19 | 5.06% |
| 1990 | $80,213,655,589.12 | 5.37% |
| 1991 | $83,467,069,486.40 | 4.06% |
| 1992 | $85,913,474,320.24 | 2.93% |
| 1993 | $88,562,900,302.11 | 3.08% |
| 1994 | $90,501,752,265.86 | 2.19% |
| 1995 | $93,379,577,039.27 | 3.18% |
| 1996 | $95,876,737,160.12 | 2.67% |
| 1997 | $98,500,785,498.49 | 2.74% |
| 1998 | $100,485,317,220.54 | 2.01% |
| 1999 | $102,566,283,987.92 | 2.07% |
| 2000 | $105,860,302,114.80 | 3.21% |
| 2001 | $108,616,314,199.40 | 2.60% |
| 2002 | $110,347,069,486.40 | 1.59% |
| 2003 | $112,377,280,966.77 | 1.84% |
| 2004 | $114,889,667,673.72 | 2.24% |
| 2005 | $118,366,404,833.84 | 3.03% |
| 2006 | $120,792,507,552.87 | 2.05% |
| 2007 | $124,746,902,719.03 | 3.27% |
| 2008 | $129,447,654,380.66 | 3.77% |
| 2009 | $127,900,328,700.91 | -1.20% |
| 2010 | $129,651,589,123.87 | 1.37% |
| 2011 | $133,192,531,722.05 | 2.73% |
| 2012 | $135,214,977,643.50 | 1.52% |
| 2013 | $136,762,252,567.98 | 1.14% |
| 2014 | $139,151,354,682.78 | 1.75% |
| 2015 | $138,739,983,081.57 | -0.30% |
| 2016 | $139,659,313,595.17 | 0.66% |
| 2017 | $142,284,123,262.84 | 1.88% |
| 2018 | $144,778,187,311.18 | 1.75% |
| 2019 | $146,894,327,492.45 | 1.46% |
| 2020 | $148,533,977,039.27 | 1.12% |
| 2021 | $154,799,006,646.53 | 4.22% |
| 2022 | $166,491,197,583.08 | 7.55% |
| 2023 | $172,029,665,256.80 | 3.33% |
| 2024 | $177,983,564,954.68 | 3.46% |
| 2025 | $183,182,149,848.94 | 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 |