$100 in 1966 is worth $1,033.89 in August 2026 dollars. Prices are 933.9% higher than they were in 1966, an average inflation rate of 3.96% a year over roughly 60 years, according to the Bureau of Labor Statistics consumer price index.
Inflation in 1966
The average CPI-U in 1966 was 32.4, up from 31.5 in 1965 — an annual inflation rate of 2.9%.
That rate was higher than in 60 of the 112 years from 1914 to 2025, and below the long-run average of 3.16% a year.
Average prices had doubled from their 1966 level by 1978, 12 years later.
Value of $100 from 1966 over time
1966 dollars in today’s dollars
| 1966 dollars | August 2026 dollars |
|---|---|
| $1 | $10.34 |
| $5 | $51.69 |
| $10 | $103.39 |
| $20 | $206.78 |
| $50 | $516.94 |
| $100 | $1,033.89 |
| $500 | $5,169.44 |
| $1,000 | $10,338.89 |
| $5,000 | $51,694.44 |
| $10,000 | $103,388.89 |
| $50,000 | $516,944.44 |
| $100,000 | $1,033,888.89 |
Buying power of $100 from 1966, year by year
| Year | Avg CPI-U | Inflation that year | Equivalent of $100 from 1966 |
|---|---|---|---|
| 1966 | 32.4 | 2.9% | $100.00 |
| 1967 | 33.4 | 3.1% | $103.09 |
| 1968 | 34.8 | 4.2% | $107.41 |
| 1969 | 36.7 | 5.5% | $113.27 |
| 1970 | 38.8 | 5.7% | $119.75 |
| 1971 | 40.5 | 4.4% | $125.00 |
| 1972 | 41.8 | 3.2% | $129.01 |
| 1973 | 44.4 | 6.2% | $137.04 |
| 1974 | 49.3 | 11.0% | $152.16 |
| 1975 | 53.8 | 9.1% | $166.05 |
| 1976 | 56.9 | 5.8% | $175.62 |
| 1977 | 60.6 | 6.5% | $187.04 |
| 1978 | 65.2 | 7.6% | $201.23 |
| 1979 | 72.6 | 11.3% | $224.07 |
| 1980 | 82.4 | 13.5% | $254.32 |
| 1981 | 90.9 | 10.3% | $280.56 |
| 1982 | 96.5 | 6.2% | $297.84 |
| 1983 | 99.6 | 3.2% | $307.41 |
| 1984 | 103.900 | 4.3% | $320.68 |
| 1985 | 107.600 | 3.6% | $332.10 |
| 1986 | 109.600 | 1.9% | $338.27 |
| 1987 | 113.600 | 3.6% | $350.62 |
| 1988 | 118.300 | 4.1% | $365.12 |
| 1989 | 124.000 | 4.8% | $382.72 |
| 1990 | 130.700 | 5.4% | $403.40 |
| 1991 | 136.200 | 4.2% | $420.37 |
| 1992 | 140.300 | 3.0% | $433.02 |
| 1993 | 144.500 | 3.0% | $445.99 |
| 1994 | 148.200 | 2.6% | $457.41 |
| 1995 | 152.400 | 2.8% | $470.37 |
| 1996 | 156.900 | 3.0% | $484.26 |
| 1997 | 160.500 | 2.3% | $495.37 |
| 1998 | 163.000 | 1.6% | $503.09 |
| 1999 | 166.600 | 2.2% | $514.20 |
| 2000 | 172.200 | 3.4% | $531.48 |
| 2001 | 177.100 | 2.8% | $546.60 |
| 2002 | 179.900 | 1.6% | $555.25 |
| 2003 | 184.000 | 2.3% | $567.90 |
| 2004 | 188.900 | 2.7% | $583.02 |
| 2005 | 195.300 | 3.4% | $602.78 |
| 2006 | 201.600 | 3.2% | $622.22 |
| 2007 | 207.342 | 2.8% | $639.94 |
| 2008 | 215.303 | 3.8% | $664.52 |
| 2009 | 214.537 | -0.4% | $662.15 |
| 2010 | 218.056 | 1.6% | $673.01 |
| 2011 | 224.939 | 3.2% | $694.26 |
| 2012 | 229.594 | 2.1% | $708.62 |
| 2013 | 232.957 | 1.5% | $719.00 |
| 2014 | 236.736 | 1.6% | $730.67 |
| 2015 | 237.017 | 0.1% | $731.53 |
| 2016 | 240.007 | 1.3% | $740.76 |
| 2017 | 245.120 | 2.1% | $756.54 |
| 2018 | 251.107 | 2.4% | $775.02 |
| 2019 | 255.657 | 1.8% | $789.06 |
| 2020 | 258.811 | 1.2% | $798.80 |
| 2021 | 270.970 | 4.7% | $836.33 |
| 2022 | 292.655 | 8.0% | $903.26 |
| 2023 | 304.702 | 4.1% | $940.44 |
| 2024 | 313.689 | 2.9% | $968.18 |
| 2025 | 321.943 | 2.6% | $993.65 |
| August 2026 | 334.980 | — | $1,033.89 |
How this is calculated
Value today = amount × (latest CPI-U ÷ 1966 average CPI-U). For $100: 100 × (334.980 ÷ 32.4) = $1,033.89. The average annual rate is the compound rate that turns 1966 prices into today’s over the elapsed time, measured from mid-1966 because an annual average describes the middle of the year. CPI-U tracks a broad basket of urban consumer spending; the prices of specific items such as housing, tuition or food have moved by different amounts.
Reverse: $100.00 today had the same buying power as $9.67 in 1966.
Other years
1956 dollars today · 1961 dollars today · 1964 dollars today · 1965 dollars today · 1967 dollars today · 1968 dollars today · 1971 dollars today · 1976 dollars today · Inflation calculator (any two years)
