| $40 in Year | Value in 2026 |
| $40 in 1914 | $1,296.22 |
| $40 in 1915 | $1,283.38 |
| $40 in 1916 | $1,258.46 |
| $40 in 1917 | $1,117.43 |
| $40 in 1918 | $946.14 |
| $40 in 1919 | $785.59 |
| $40 in 1920 | $685.83 |
| $40 in 1921 | $668.15 |
| $40 in 1922 | $749.26 |
| $40 in 1923 | $766.99 |
| $40 in 1924 | $749.26 |
| $40 in 1925 | $749.26 |
| $40 in 1926 | $724.14 |
| $40 in 1927 | $732.33 |
| $40 in 1928 | $749.26 |
| $40 in 1929 | $758.02 |
| $40 in 1930 | $753.61 |
| $40 in 1931 | $805.10 |
| $40 in 1932 | $887.82 |
| $40 in 1933 | $989.48 |
| $40 in 1934 | $981.98 |
| $40 in 1935 | $967.33 |
| $40 in 1936 | $939.29 |
| $40 in 1937 | $925.87 |
| $40 in 1938 | $900.15 |
| $40 in 1939 | $925.87 |
| $40 in 1940 | $925.87 |
| $40 in 1941 | $919.30 |
| $40 in 1942 | $836.27 |
| $40 in 1943 | $766.99 |
| $40 in 1944 | $744.95 |
| $40 in 1945 | $728.21 |
| $40 in 1946 | $712.21 |
| $40 in 1947 | $602.89 |
| $40 in 1948 | $553.94 |
| $40 in 1949 | $537.85 |
| $40 in 1950 | $549.24 |
| $40 in 1951 | $518.49 |
| $40 in Year | Value in 2026 |
| $40 in 1952 | $489.14 |
| $40 in 1953 | $485.47 |
| $40 in 1954 | $481.86 |
| $40 in 1955 | $485.47 |
| $40 in 1956 | $483.66 |
| $40 in 1957 | $469.64 |
| $40 in 1958 | $456.41 |
| $40 in 1959 | $448.52 |
| $40 in 1960 | $440.89 |
| $40 in 1961 | $434.97 |
| $40 in 1962 | $432.07 |
| $40 in 1963 | $426.39 |
| $40 in 1964 | $419.49 |
| $40 in 1965 | $415.45 |
| $40 in 1966 | $407.62 |
| $40 in 1967 | $393.99 |
| $40 in 1968 | $382.36 |
| $40 in 1969 | $365.13 |
| $40 in 1970 | $343.82 |
| $40 in 1971 | $325.68 |
| $40 in 1972 | $315.38 |
| $40 in 1973 | $304.99 |
| $40 in 1974 | $280.57 |
| $40 in 1975 | $249.75 |
| $40 in 1976 | $233.55 |
| $40 in 1977 | $222.72 |
| $40 in 1978 | $208.73 |
| $40 in 1979 | $191.46 |
| $40 in 1980 | $169.00 |
| $40 in 1981 | $150.20 |
| $40 in 1982 | $137.90 |
| $40 in 1983 | $132.81 |
| $40 in 1984 | $127.96 |
| $40 in 1985 | $123.10 |
| $40 in 1986 | $118.59 |
| $40 in 1987 | $117.30 |
| $40 in 1988 | $112.32 |
| $40 in 1989 | $107.57 |
| $40 in Year | Value in 2026 |
| $40 in 1990 | $102.79 |
| $40 in 1991 | $96.88 |
| $40 in 1992 | $94.00 |
| $40 in 1993 | $91.35 |
| $40 in 1994 | $88.90 |
| $40 in 1995 | $86.59 |
| $40 in 1996 | $84.44 |
| $40 in 1997 | $81.73 |
| $40 in 1998 | $80.36 |
| $40 in 1999 | $79.09 |
| $40 in 2000 | $77.02 |
| $40 in 2001 | $74.50 |
| $40 in 2002 | $73.36 |
| $40 in 2003 | $71.65 |
| $40 in 2004 | $70.33 |
| $40 in 2005 | $68.11 |
| $40 in 2006 | $65.86 |
| $40 in 2007 | $64.23 |
| $40 in 2008 | $61.71 |
| $40 in 2009 | $61.66 |
| $40 in 2010 | $60.02 |
| $40 in 2011 | $59.14 |
| $40 in 2012 | $57.44 |
| $40 in 2013 | $56.46 |
| $40 in 2014 | $55.62 |
| $40 in 2015 | $55.20 |
| $40 in 2016 | $54.80 |
| $40 in 2017 | $53.69 |
| $40 in 2018 | $52.58 |
| $40 in 2019 | $51.59 |
| $40 in 2020 | $50.44 |
| $40 in 2021 | $49.76 |
| $40 in 2022 | $46.49 |
| $40 in 2023 | $43.67 |
| $40 in 2024 | $42.26 |
| $40 in 2025 | $41.07 |
| $40 in 2026 | $40.00 |