According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,902.60% higher in 2025 versus 1915 (a $22,640,275,457.57 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, $780,000,000 in Chicago in the year 1915 would cost $23,420,275,457.57 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 $780,000,000 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 | $780,000,000.00 | 0.17% |
| 1916 | $803,361,064.89 | 3.00% |
| 1917 | $915,623,960.07 | 13.97% |
| 1918 | $1,069,417,637.27 | 16.80% |
| 1919 | $1,297,836,938.44 | 21.36% |
| 1920 | $1,545,723,793.68 | 19.10% |
| 1921 | $1,415,291,181.36 | -8.44% |
| 1922 | $1,336,772,046.59 | -5.55% |
| 1923 | $1,352,995,008.32 | 1.21% |
| 1924 | $1,379,600,665.56 | 1.97% |
| 1925 | $1,410,099,833.61 | 2.21% |
| 1926 | $1,434,758,735.44 | 1.75% |
| 1927 | $1,421,780,366.06 | -0.90% |
| 1928 | $1,377,653,910.15 | -3.10% |
| 1929 | $1,374,409,317.80 | -0.24% |
| 1930 | $1,359,484,193.01 | -1.09% |
| 1931 | $1,242,678,868.55 | -8.59% |
| 1932 | $1,096,672,212.98 | -11.75% |
| 1933 | $983,760,399.33 | -10.30% |
| 1934 | $990,249,584.03 | 0.66% |
| 1935 | $1,033,078,203.00 | 4.33% |
| 1936 | $1,053,843,594.01 | 2.01% |
| 1937 | $1,097,321,131.45 | 4.13% |
| 1938 | $1,089,534,109.82 | -0.71% |
| 1939 | $1,068,119,800.33 | -1.97% |
| 1940 | $1,073,960,066.56 | 0.55% |
| 1941 | $1,130,415,973.38 | 5.26% |
| 1942 | $1,242,678,868.55 | 9.93% |
| 1943 | $1,312,113,144.76 | 5.59% |
| 1944 | $1,332,229,617.30 | 1.53% |
| 1945 | $1,360,782,029.95 | 2.14% |
| 1946 | $1,482,129,783.69 | 8.92% |
| 1947 | $1,721,580,698.84 | 16.16% |
| 1948 | $1,871,480,865.22 | 8.71% |
| 1949 | $1,869,534,109.82 | -0.10% |
| 1950 | $1,888,352,745.42 | 1.01% |
| 1951 | $2,036,955,074.88 | 7.87% |
| 1952 | $2,081,081,530.78 | 2.17% |
| 1953 | $2,099,251,247.92 | 0.87% |
| 1954 | $2,130,399,334.44 | 1.48% |
| 1955 | $2,144,675,540.77 | 0.67% |
| 1956 | $2,174,525,790.35 | 1.39% |
| 1957 | $2,245,257,903.49 | 3.25% |
| 1958 | $2,313,394,342.76 | 3.03% |
| 1959 | $2,332,212,978.37 | 0.81% |
| 1960 | $2,364,658,901.83 | 1.39% |
| 1961 | $2,376,339,434.28 | 0.49% |
| 1962 | $2,400,998,336.11 | 1.04% |
| 1963 | $2,425,008,319.47 | 1.00% |
| 1964 | $2,434,742,096.51 | 0.40% |
| 1965 | $2,467,188,019.97 | 1.33% |
| 1966 | $2,541,164,725.46 | 3.00% |
| 1967 | $2,607,354,409.32 | 2.60% |
| 1968 | $2,717,670,549.08 | 4.23% |
| 1969 | $2,866,272,878.54 | 5.47% |
| 1970 | $3,030,449,251.25 | 5.73% |
| 1971 | $3,149,850,249.58 | 3.94% |
| 1972 | $3,239,400,998.34 | 2.84% |
| 1973 | $3,442,512,479.20 | 6.27% |
| 1974 | $3,806,555,740.43 | 10.57% |
| 1975 | $4,107,004,991.68 | 7.89% |
| 1976 | $4,303,627,287.85 | 4.79% |
| 1977 | $4,574,226,289.52 | 6.29% |
| 1978 | $4,972,013,311.15 | 8.70% |
| 1979 | $5,592,379,367.72 | 12.48% |
| 1980 | $6,398,985,024.96 | 14.42% |
| 1981 | $7,011,564,059.90 | 9.57% |
| 1982 | $7,489,816,971.71 | 6.82% |
| 1983 | $7,788,319,467.55 | 3.99% |
| 1984 | $8,082,279,534.11 | 3.77% |
| 1985 | $8,387,271,214.64 | 3.77% |
| 1986 | $8,562,479,201.33 | 2.09% |
| 1987 | $8,915,490,848.59 | 4.12% |
| 1988 | $9,263,960,066.56 | 3.91% |
| 1989 | $9,732,479,201.33 | 5.06% |
| 1990 | $10,255,507,487.52 | 5.37% |
| 1991 | $10,671,464,226.29 | 4.06% |
| 1992 | $10,984,242,928.45 | 2.93% |
| 1993 | $11,322,978,369.38 | 3.08% |
| 1994 | $11,570,865,224.63 | 2.19% |
| 1995 | $11,938,801,996.67 | 3.18% |
| 1996 | $12,258,069,883.53 | 2.67% |
| 1997 | $12,593,560,732.11 | 2.74% |
| 1998 | $12,847,287,853.58 | 2.01% |
| 1999 | $13,113,344,425.96 | 2.07% |
| 2000 | $13,534,492,512.48 | 3.21% |
| 2001 | $13,886,855,241.26 | 2.60% |
| 2002 | $14,108,136,439.27 | 1.59% |
| 2003 | $14,367,703,826.96 | 1.84% |
| 2004 | $14,688,918,469.22 | 2.24% |
| 2005 | $15,133,427,620.63 | 3.03% |
| 2006 | $15,443,610,648.92 | 2.05% |
| 2007 | $15,949,189,517.47 | 3.27% |
| 2008 | $16,550,191,846.92 | 3.77% |
| 2009 | $16,352,362,562.40 | -1.20% |
| 2010 | $16,576,265,391.01 | 1.37% |
| 2011 | $17,028,983,361.06 | 2.73% |
| 2012 | $17,287,557,903.49 | 1.52% |
| 2013 | $17,485,380,698.84 | 1.14% |
| 2014 | $17,790,833,111.48 | 1.75% |
| 2015 | $17,738,238,269.55 | -0.30% |
| 2016 | $17,855,776,871.88 | 0.66% |
| 2017 | $18,191,365,058.24 | 1.88% |
| 2018 | $18,510,237,104.83 | 1.75% |
| 2019 | $18,780,790,682.20 | 1.46% |
| 2020 | $18,990,423,793.68 | 1.12% |
| 2021 | $19,791,422,795.34 | 4.22% |
| 2022 | $21,286,297,337.77 | 7.55% |
| 2023 | $21,994,403,660.57 | 3.33% |
| 2024 | $22,755,623,960.07 | 3.46% |
| 2025 | $23,420,275,457.57 | 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 |