According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,902.60% higher in 2025 versus 1915 (a $34,831,193,011.65 difference in value).
Between 1915 and 2025: Chicago experienced an average inflation rate of 3.14% per year. This rate of change indicates significant inflation. In other words, $1,200,000,000 in Chicago in the year 1915 would cost $36,031,193,011.65 in 2025 for an equivalent purchase. Compared to the overall inflation rate of 3.19% during this same period, inflation in Chicago was lower.
In the year 1915: Pricing changed by 0.17%, which is below the average yearly change in Chicago during the 1915-2025 time period. Compared to inflation for all items in 1915 (0.92%), inflation in Chicago was lower.
Below are calculations of equivalent buying power in Chicago, over time, for $1,200,000,000 beginning in 1915. Each of the amounts below is equivalent in terms of what it could buy at the time:
| Year | USD Value | Inflation Rate |
|---|---|---|
| 1915 | $1,200,000,000.00 | 0.17% |
| 1916 | $1,235,940,099.83 | 3.00% |
| 1917 | $1,408,652,246.26 | 13.97% |
| 1918 | $1,645,257,903.49 | 16.80% |
| 1919 | $1,996,672,212.98 | 21.36% |
| 1920 | $2,378,036,605.66 | 19.10% |
| 1921 | $2,177,371,048.25 | -8.44% |
| 1922 | $2,056,572,379.37 | -5.55% |
| 1923 | $2,081,530,782.03 | 1.21% |
| 1924 | $2,122,462,562.40 | 1.97% |
| 1925 | $2,169,384,359.40 | 2.21% |
| 1926 | $2,207,321,131.45 | 1.75% |
| 1927 | $2,187,354,409.32 | -0.90% |
| 1928 | $2,119,467,554.08 | -3.10% |
| 1929 | $2,114,475,873.54 | -0.24% |
| 1930 | $2,091,514,143.09 | -1.09% |
| 1931 | $1,911,813,643.93 | -8.59% |
| 1932 | $1,687,188,019.97 | -11.75% |
| 1933 | $1,513,477,537.44 | -10.30% |
| 1934 | $1,523,460,898.50 | 0.66% |
| 1935 | $1,589,351,081.53 | 4.33% |
| 1936 | $1,621,297,836.94 | 2.01% |
| 1937 | $1,688,186,356.07 | 4.13% |
| 1938 | $1,676,206,322.80 | -0.71% |
| 1939 | $1,643,261,231.28 | -1.97% |
| 1940 | $1,652,246,256.24 | 0.55% |
| 1941 | $1,739,101,497.50 | 5.26% |
| 1942 | $1,911,813,643.93 | 9.93% |
| 1943 | $2,018,635,607.32 | 5.59% |
| 1944 | $2,049,584,026.62 | 1.53% |
| 1945 | $2,093,510,815.31 | 2.14% |
| 1946 | $2,280,199,667.22 | 8.92% |
| 1947 | $2,648,585,690.52 | 16.16% |
| 1948 | $2,879,201,331.11 | 8.71% |
| 1949 | $2,876,206,322.80 | -0.10% |
| 1950 | $2,905,158,069.88 | 1.01% |
| 1951 | $3,133,777,038.27 | 7.87% |
| 1952 | $3,201,663,893.51 | 2.17% |
| 1953 | $3,229,617,304.49 | 0.87% |
| 1954 | $3,277,537,437.60 | 1.48% |
| 1955 | $3,299,500,831.95 | 0.67% |
| 1956 | $3,345,424,292.85 | 1.39% |
| 1957 | $3,454,242,928.45 | 3.25% |
| 1958 | $3,559,068,219.63 | 3.03% |
| 1959 | $3,588,019,966.72 | 0.81% |
| 1960 | $3,637,936,772.05 | 1.39% |
| 1961 | $3,655,906,821.96 | 0.49% |
| 1962 | $3,693,843,594.01 | 1.04% |
| 1963 | $3,730,782,029.95 | 1.00% |
| 1964 | $3,745,757,071.55 | 0.40% |
| 1965 | $3,795,673,876.87 | 1.33% |
| 1966 | $3,909,484,193.01 | 3.00% |
| 1967 | $4,011,314,475.87 | 2.60% |
| 1968 | $4,181,031,613.98 | 4.23% |
| 1969 | $4,409,650,582.36 | 5.47% |
| 1970 | $4,662,229,617.30 | 5.73% |
| 1971 | $4,845,923,460.90 | 3.94% |
| 1972 | $4,983,693,843.59 | 2.84% |
| 1973 | $5,296,173,044.93 | 6.27% |
| 1974 | $5,856,239,600.67 | 10.57% |
| 1975 | $6,318,469,217.97 | 7.89% |
| 1976 | $6,620,965,058.24 | 4.79% |
| 1977 | $7,037,271,214.64 | 6.29% |
| 1978 | $7,649,251,247.92 | 8.70% |
| 1979 | $8,603,660,565.72 | 12.48% |
| 1980 | $9,844,592,346.09 | 14.42% |
| 1981 | $10,787,021,630.62 | 9.57% |
| 1982 | $11,522,795,341.10 | 6.82% |
| 1983 | $11,982,029,950.08 | 3.99% |
| 1984 | $12,434,276,206.32 | 3.77% |
| 1985 | $12,903,494,176.37 | 3.77% |
| 1986 | $13,173,044,925.12 | 2.09% |
| 1987 | $13,716,139,767.05 | 4.12% |
| 1988 | $14,252,246,256.24 | 3.91% |
| 1989 | $14,973,044,925.12 | 5.06% |
| 1990 | $15,777,703,826.96 | 5.37% |
| 1991 | $16,417,637,271.21 | 4.06% |
| 1992 | $16,898,835,274.54 | 2.93% |
| 1993 | $17,419,966,722.13 | 3.08% |
| 1994 | $17,801,331,114.81 | 2.19% |
| 1995 | $18,367,387,687.19 | 3.18% |
| 1996 | $18,858,569,051.58 | 2.67% |
| 1997 | $19,374,708,818.64 | 2.74% |
| 1998 | $19,765,058,236.27 | 2.01% |
| 1999 | $20,174,376,039.93 | 2.07% |
| 2000 | $20,822,296,173.04 | 3.21% |
| 2001 | $21,364,392,678.87 | 2.60% |
| 2002 | $21,704,825,291.18 | 1.59% |
| 2003 | $22,104,159,733.78 | 1.84% |
| 2004 | $22,598,336,106.49 | 2.24% |
| 2005 | $23,282,196,339.43 | 3.03% |
| 2006 | $23,759,400,998.34 | 2.05% |
| 2007 | $24,537,214,642.26 | 3.27% |
| 2008 | $25,461,833,610.65 | 3.77% |
| 2009 | $25,157,480,865.22 | -1.20% |
| 2010 | $25,501,946,755.41 | 1.37% |
| 2011 | $26,198,435,940.10 | 2.73% |
| 2012 | $26,596,242,928.45 | 1.52% |
| 2013 | $26,900,585,690.52 | 1.14% |
| 2014 | $27,370,512,479.20 | 1.75% |
| 2015 | $27,289,597,337.77 | -0.30% |
| 2016 | $27,470,425,956.74 | 0.66% |
| 2017 | $27,986,715,474.21 | 1.88% |
| 2018 | $28,477,287,853.58 | 1.75% |
| 2019 | $28,893,524,126.46 | 1.46% |
| 2020 | $29,216,036,605.66 | 1.12% |
| 2021 | $30,448,342,762.06 | 4.22% |
| 2022 | $32,748,149,750.42 | 7.55% |
| 2023 | $33,837,544,093.18 | 3.33% |
| 2024 | $35,008,652,246.26 | 3.46% |
| 2025 | $36,031,193,011.65 | 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 |