According to the U.S. Bureau of Labor Statistics, prices in Boston, Massachusetts are 1,579.93% higher in 2025 versus 1920 (a $142,194,121.26 difference in value).
Between 1920 and 2025: Boston experienced an average inflation rate of 2.72% per year. This rate of change indicates significant inflation. In other words, $9,000,000 in Boston in the year 1920 would cost $151,194,121.26 in 2025 for an equivalent purchase. Compared to the overall inflation rate of 2.68% during this same period, inflation in Boston was higher.
In the year 1920: Pricing changed by 17.25%, which is significantly above the average yearly change in Boston during the 1920-2025 time period. Compared to inflation for all items in 1920 (15.62%), inflation in Boston was higher.
Below are calculations of equivalent buying power in Boston, over time, for $9,000,000 beginning in 1920. Each of the amounts below is equivalent in terms of what it could buy at the time:
| Year | USD Value | Inflation Rate |
|---|---|---|
| 1920 | $9,000,000.00 | 17.25% |
| 1921 | $8,193,757.60 | -8.96% |
| 1922 | $7,467,774.63 | -8.86% |
| 1923 | $7,580,867.45 | 1.51% |
| 1924 | $7,631,941.63 | 0.67% |
| 1925 | $7,715,849.21 | 1.10% |
| 1926 | $8,000,405.35 | 3.69% |
| 1927 | $7,916,497.77 | -1.05% |
| 1928 | $7,763,275.23 | -1.94% |
| 1929 | $7,726,793.68 | -0.47% |
| 1930 | $7,672,071.34 | -0.71% |
| 1931 | $7,077,421.97 | -7.75% |
| 1932 | $6,380,624.24 | -9.85% |
| 1933 | $5,957,438.18 | -6.63% |
| 1934 | $6,143,494.12 | 3.12% |
| 1935 | $6,271,179.57 | 2.08% |
| 1936 | $6,307,661.13 | 0.58% |
| 1937 | $6,449,939.20 | 2.26% |
| 1938 | $6,285,772.19 | -2.55% |
| 1939 | $6,190,920.15 | -1.51% |
| 1940 | $6,249,290.64 | 0.94% |
| 1941 | $6,526,550.47 | 4.44% |
| 1942 | $7,223,348.20 | 10.68% |
| 1943 | $7,602,756.38 | 5.25% |
| 1944 | $7,686,663.96 | 1.10% |
| 1945 | $7,843,534.66 | 2.04% |
| 1946 | $8,485,610.05 | 8.19% |
| 1947 | $9,660,316.17 | 13.84% |
| 1948 | $10,455,614.11 | 8.23% |
| 1949 | $10,327,928.66 | -1.22% |
| 1950 | $10,462,910.42 | 1.31% |
| 1951 | $11,163,356.30 | 6.69% |
| 1952 | $11,407,782.73 | 2.19% |
| 1953 | $11,436,967.98 | 0.26% |
| 1954 | $11,480,745.85 | 0.38% |
| 1955 | $11,535,468.18 | 0.48% |
| 1956 | $11,852,857.72 | 2.75% |
| 1957 | $12,268,747.47 | 3.51% |
| 1958 | $12,662,748.28 | 3.21% |
| 1959 | $12,761,248.48 | 0.78% |
| 1960 | $13,002,026.75 | 1.89% |
| 1961 | $13,199,027.16 | 1.52% |
| 1962 | $13,483,583.30 | 2.16% |
| 1963 | $13,757,194.97 | 2.03% |
| 1964 | $13,943,250.91 | 1.35% |
| 1965 | $14,205,918.12 | 1.88% |
| 1966 | $14,643,696.80 | 3.08% |
| 1967 | $15,026,753.14 | 2.62% |
| 1968 | $15,617,754.36 | 3.93% |
| 1969 | $16,482,367.25 | 5.54% |
| 1970 | $17,489,258.21 | 6.11% |
| 1971 | $18,419,537.90 | 5.32% |
| 1972 | $19,076,205.92 | 3.57% |
| 1973 | $20,137,819.21 | 5.57% |
| 1974 | $22,217,267.94 | 10.33% |
| 1975 | $24,220,105.39 | 9.01% |
| 1976 | $26,190,109.44 | 8.13% |
| 1977 | $27,525,334.41 | 5.10% |
| 1978 | $28,995,541.14 | 5.34% |
| 1979 | $31,914,065.67 | 10.07% |
| 1980 | $35,963,518.44 | 12.69% |
| 1981 | $40,049,452.78 | 11.36% |
| 1982 | $41,764,085.93 | 4.28% |
| 1983 | $43,610,052.70 | 4.42% |
| 1984 | $45,755,168.22 | 4.92% |
| 1985 | $47,783,542.76 | 4.43% |
| 1986 | $49,089,582.49 | 2.73% |
| 1987 | $51,183,623.83 | 4.27% |
| 1988 | $54,189,704.09 | 5.87% |
| 1989 | $57,349,006.89 | 5.83% |
| 1990 | $60,668,828.54 | 5.79% |
| 1991 | $63,419,537.90 | 4.53% |
| 1992 | $64,966,355.90 | 2.44% |
| 1993 | $66,899,878.39 | 2.98% |
| 1994 | $67,746,250.51 | 1.27% |
| 1995 | $69,373,327.93 | 2.40% |
| 1996 | $71,401,702.47 | 2.92% |
| 1997 | $73,459,262.26 | 2.88% |
| 1998 | $75,115,524.93 | 2.25% |
| 1999 | $76,932,306.45 | 2.42% |
| 2000 | $80,230,239.16 | 4.29% |
| 2001 | $83,783,542.76 | 4.43% |
| 2002 | $85,921,361.98 | 2.55% |
| 2003 | $89,102,553.71 | 3.70% |
| 2004 | $91,656,262.67 | 2.87% |
| 2005 | $94,560,194.57 | 3.17% |
| 2006 | $97,580,867.45 | 3.19% |
| 2007 | $99,417,640.86 | 1.88% |
| 2008 | $103,063,242.81 | 3.67% |
| 2009 | $102,225,334.41 | -0.81% |
| 2010 | $103,902,683.42 | 1.64% |
| 2011 | $106,655,362.79 | 2.65% |
| 2012 | $108,378,094.85 | 1.62% |
| 2013 | $109,885,585.73 | 1.39% |
| 2014 | $111,688,285.37 | 1.64% |
| 2015 | $112,396,538.31 | 0.63% |
| 2016 | $113,945,910.01 | 1.38% |
| 2017 | $116,852,322.66 | 2.55% |
| 2018 | $120,621,524.12 | 3.23% |
| 2019 | $123,043,388.73 | 2.01% |
| 2020 | $124,368,034.05 | 1.08% |
| 2021 | $128,213,700.85 | 3.09% |
| 2022 | $137,452,728.01 | 7.21% |
| 2023 | $142,592,468.59 | 3.74% |
| 2024 | $147,155,654.64 | 3.20% |
| 2025 | $151,194,121.26 | 2.74%* |
* 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 Boston, Massachusetts:
| 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 | 10.500 | 10.517 | 10.817 | 12.275 | 14.458 | 17.533 | 20.558 | 18.717 | 17.058 | 17.317 | 17.433 | 17.625 | 18.275 | 18.083 | 17.733 | 17.650 | 17.525 | 16.167 | 14.575 | 13.608 | 14.033 | 14.325 | 14.408 | 14.733 | 14.358 | 14.142 | 14.275 | 14.908 | 16.500 | 17.367 | 17.558 | 17.917 | 19.383 | 22.067 | 23.883 | 23.592 | 23.900 | 25.500 | 26.058 | 26.125 | 26.225 | 26.350 | 27.075 | 28.025 | 28.925 | 29.150 | 29.700 | 30.150 | 30.800 | 31.425 | 31.850 | 32.450 | 33.450 | 34.325 | 35.675 | 37.650 | 39.950 | 42.075 | 43.575 | 46.000 | 50.750 | 55.325 | 59.825 | 62.875 | 66.233 | 72.900 | 82.150 | 91.483 | 95.400 | 99.617 | 104.517 | 109.150 | 112.133 | 116.917 | 123.783 | 131.000 | 138.583 | 144.867 | 148.400 | 152.817 | 154.750 | 158.467 | 163.100 | 167.800 | 171.583 | 175.733 | 183.267 | 191.383 | 196.267 | 203.533 | 209.367 | 216.000 | 222.900 | 227.096 | 235.423 | 233.509 | 237.341 | 243.629 | 247.564 | 251.007 | 255.125 | 256.743 | 260.282 | 266.921 | 275.531 | 281.063 | 284.089 | 292.873 | 313.978 | 325.718 | 336.142 | 345.367 |