According to the U.S. Bureau of Labor Statistics, prices in Chicago, Illinois are 2,902.60% higher in 2025 versus 1915 (a $29,025,994,176,372,676 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, $999,999,999,999,999 in Chicago in the year 1915 would cost $30,025,994,176,372,676 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 $999,999,999,999,999 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 | $999,999,999,999,999.00 | 0.17% |
| 1916 | $1,029,950,083,194,674.38 | 3.00% |
| 1917 | $1,173,876,871,880,198.50 | 13.97% |
| 1918 | $1,371,048,252,911,812.25 | 16.80% |
| 1919 | $1,663,893,510,815,306.25 | 21.36% |
| 1920 | $1,981,697,171,381,029.50 | 19.10% |
| 1921 | $1,814,475,873,544,091.50 | -8.44% |
| 1922 | $1,713,810,316,139,765.00 | -5.55% |
| 1923 | $1,734,608,985,024,956.50 | 1.21% |
| 1924 | $1,768,718,801,996,670.00 | 1.97% |
| 1925 | $1,807,820,299,500,829.75 | 2.21% |
| 1926 | $1,839,434,276,206,321.00 | 1.75% |
| 1927 | $1,822,795,341,098,168.25 | -0.90% |
| 1928 | $1,766,222,961,730,447.25 | -3.10% |
| 1929 | $1,762,063,227,953,409.25 | -0.24% |
| 1930 | $1,742,928,452,579,033.00 | -1.09% |
| 1931 | $1,593,178,036,605,655.25 | -8.59% |
| 1932 | $1,405,990,016,638,933.75 | -11.75% |
| 1933 | $1,261,231,281,198,002.00 | -10.30% |
| 1934 | $1,269,550,748,752,078.50 | 0.66% |
| 1935 | $1,324,459,234,608,983.75 | 4.33% |
| 1936 | $1,351,081,530,782,028.50 | 2.01% |
| 1937 | $1,406,821,963,394,341.00 | 4.13% |
| 1938 | $1,396,838,602,329,449.50 | -0.71% |
| 1939 | $1,369,384,359,400,997.00 | -1.97% |
| 1940 | $1,376,871,880,199,665.75 | 0.55% |
| 1941 | $1,449,251,247,920,131.50 | 5.26% |
| 1942 | $1,593,178,036,605,655.25 | 9.93% |
| 1943 | $1,682,196,339,434,274.25 | 5.59% |
| 1944 | $1,707,986,688,851,911.75 | 1.53% |
| 1945 | $1,744,592,346,089,848.75 | 2.14% |
| 1946 | $1,900,166,389,351,079.75 | 8.92% |
| 1947 | $2,207,154,742,096,503.25 | 16.16% |
| 1948 | $2,399,334,442,595,671.00 | 8.71% |
| 1949 | $2,396,838,602,329,448.50 | -0.10% |
| 1950 | $2,420,965,058,236,270.50 | 1.01% |
| 1951 | $2,611,480,865,224,622.50 | 7.87% |
| 1952 | $2,668,053,244,592,343.00 | 2.17% |
| 1953 | $2,691,347,753,743,757.00 | 0.87% |
| 1954 | $2,731,281,198,003,325.00 | 1.48% |
| 1955 | $2,749,584,026,622,293.50 | 0.67% |
| 1956 | $2,787,853,577,371,045.00 | 1.39% |
| 1957 | $2,878,535,773,710,479.50 | 3.25% |
| 1958 | $2,965,890,183,028,283.00 | 3.03% |
| 1959 | $2,990,016,638,935,104.50 | 0.81% |
| 1960 | $3,031,613,976,705,486.50 | 1.39% |
| 1961 | $3,046,589,018,302,825.50 | 0.49% |
| 1962 | $3,078,202,995,008,316.00 | 1.04% |
| 1963 | $3,108,985,024,958,399.50 | 1.00% |
| 1964 | $3,121,464,226,289,514.00 | 0.40% |
| 1965 | $3,163,061,564,059,896.50 | 1.33% |
| 1966 | $3,257,903,494,176,369.50 | 3.00% |
| 1967 | $3,342,762,063,227,950.00 | 2.60% |
| 1968 | $3,484,193,011,647,250.50 | 4.23% |
| 1969 | $3,674,708,818,635,603.00 | 5.47% |
| 1970 | $3,885,191,347,753,739.00 | 5.73% |
| 1971 | $4,038,269,550,748,747.00 | 3.94% |
| 1972 | $4,153,078,202,995,004.00 | 2.84% |
| 1973 | $4,413,477,537,437,598.50 | 6.27% |
| 1974 | $4,880,199,667,221,292.00 | 10.57% |
| 1975 | $5,265,391,014,975,036.00 | 7.89% |
| 1976 | $5,517,470,881,863,555.00 | 4.79% |
| 1977 | $5,864,392,678,868,547.00 | 6.29% |
| 1978 | $6,374,376,039,933,437.00 | 8.70% |
| 1979 | $7,169,717,138,103,153.00 | 12.48% |
| 1980 | $8,203,826,955,074,867.00 | 14.42% |
| 1981 | $8,989,184,692,179,692.00 | 9.57% |
| 1982 | $9,602,329,450,915,132.00 | 6.82% |
| 1983 | $9,985,024,958,402,650.00 | 3.99% |
| 1984 | $10,361,896,838,602,318.00 | 3.77% |
| 1985 | $10,752,911,813,643,914.00 | 3.77% |
| 1986 | $10,977,537,437,603,980.00 | 2.09% |
| 1987 | $11,430,116,472,545,746.00 | 4.12% |
| 1988 | $11,876,871,880,199,652.00 | 3.91% |
| 1989 | $12,477,537,437,603,980.00 | 5.06% |
| 1990 | $13,148,086,522,462,552.00 | 5.37% |
| 1991 | $13,681,364,392,678,854.00 | 4.06% |
| 1992 | $14,082,362,728,785,344.00 | 2.93% |
| 1993 | $14,516,638,935,108,136.00 | 3.08% |
| 1994 | $14,834,442,595,673,862.00 | 2.19% |
| 1995 | $15,306,156,405,989,998.00 | 3.18% |
| 1996 | $15,715,474,209,650,566.00 | 2.67% |
| 1997 | $16,145,590,682,196,322.00 | 2.74% |
| 1998 | $16,470,881,863,560,712.00 | 2.01% |
| 1999 | $16,811,980,033,277,852.00 | 2.07% |
| 2000 | $17,351,913,477,537,414.00 | 3.21% |
| 2001 | $17,803,660,565,723,774.00 | 2.60% |
| 2002 | $18,087,354,409,317,784.00 | 1.59% |
| 2003 | $18,420,133,111,480,844.00 | 1.84% |
| 2004 | $18,831,946,755,407,636.00 | 2.24% |
| 2005 | $19,401,830,282,861,876.00 | 3.03% |
| 2006 | $19,799,500,831,946,736.00 | 2.05% |
| 2007 | $20,447,678,868,552,388.00 | 3.27% |
| 2008 | $21,218,194,675,540,744.00 | 3.77% |
| 2009 | $20,964,567,387,687,164.00 | -1.20% |
| 2010 | $21,251,622,296,173,024.00 | 1.37% |
| 2011 | $21,832,029,950,083,172.00 | 2.73% |
| 2012 | $22,163,535,773,710,456.00 | 1.52% |
| 2013 | $22,417,154,742,096,480.00 | 1.14% |
| 2014 | $22,808,760,399,334,420.00 | 1.75% |
| 2015 | $22,741,331,114,808,624.00 | -0.30% |
| 2016 | $22,892,021,630,615,616.00 | 0.66% |
| 2017 | $23,322,262,895,174,680.00 | 1.88% |
| 2018 | $23,731,073,211,314,452.00 | 1.75% |
| 2019 | $24,077,936,772,046,568.00 | 1.46% |
| 2020 | $24,346,697,171,381,004.00 | 1.12% |
| 2021 | $25,373,618,968,385,996.00 | 4.22% |
| 2022 | $27,290,124,792,013,280.00 | 7.55% |
| 2023 | $28,197,953,410,981,668.00 | 3.33% |
| 2024 | $29,173,876,871,880,168.00 | 3.46% |
| 2025 | $30,025,994,176,372,676.00 | 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 |