U.S. inflation · 1955–2011
$100 in 1955 has the same buying power as
$839
in 2011
| Cumulative price change | 739.3% |
|---|---|
| Average inflation rate | 3.87% per year |
| Converted amount ($100 base) | $839 |
| Price difference ($100 base) | $739 |
| CPI in 1955 | 26.8 |
| CPI in 2011 | 224.939 |
| Inflation in 1955 | -0.37% |
| Inflation in 2011 | 3.16% |
| $100 in 1955 → 2011 | $839 |
| $100 in 2011 → 1955 | $11.91 |
Between 1955 and 2011, the Consumer Price Index went from 26.8 to 224.939. Cumulatively, prices increased 739.3%, which works out to an average of 3.87% per year. Put differently, a dollar in 1955 bought what $0.12 buys in 2011.
| Amount in 1955 | Value in 2011 |
|---|---|
| $1.00 | $8.39 |
| $5.00 | $41.97 |
| $10.00 | $83.93 |
| $20.00 | $168 |
| $50.00 | $420 |
| $100 | $839 |
| $500 | $4,197 |
| $1,000 | $8,393 |
| $5,000 | $41,966 |
| $10,000 | $83,932 |
| $100,000 | $839,325 |
| $1,000,000 | $8,393,246 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1955 spending costs in 2011, by category:
| Category | Avg. yearly inflation | $100 in 1955 → |
|---|---|---|
| All items (CPI-U) | 3.87% | $839 |
| Medical care | 5.67% | $2,199 |
| Transportation | 3.84% | $823 |
| Food | 3.83% | $820 |
| Apparel | 1.89% | $285 |
Not shown because the BLS began these indexes after 1955: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
| Year | CPI | Inflation rate | $100 from 1955 |
|---|---|---|---|
| 1955 | 26.8 | -0.4% | $100 |
| 1957 | 28.1 | 3.3% | $105 |
| 1959 | 29.1 | 0.7% | $109 |
| 1961 | 29.9 | 1.0% | $112 |
| 1963 | 30.6 | 1.3% | $114 |
| 1965 | 31.5 | 1.6% | $118 |
| 1967 | 33.4 | 3.1% | $125 |
| 1969 | 36.7 | 5.5% | $137 |
| 1971 | 40.5 | 4.4% | $151 |
| 1973 | 44.4 | 6.2% | $166 |
| 1975 | 53.8 | 9.1% | $201 |
| 1977 | 60.6 | 6.5% | $226 |
| 1979 | 72.6 | 11.3% | $271 |
| 1981 | 90.9 | 10.3% | $339 |
| 1983 | 99.6 | 3.2% | $372 |
| 1985 | 107.6 | 3.6% | $401 |
| 1987 | 113.6 | 3.6% | $424 |
| 1989 | 124 | 4.8% | $463 |
| 1991 | 136.2 | 4.2% | $508 |
| 1993 | 144.5 | 3.0% | $539 |
| 1995 | 152.4 | 2.8% | $569 |
| 1997 | 160.5 | 2.3% | $599 |
| 1999 | 166.6 | 2.2% | $622 |
| 2001 | 177.1 | 2.8% | $661 |
| 2003 | 184 | 2.3% | $687 |
| 2005 | 195.3 | 3.4% | $729 |
| 2007 | 207.342 | 2.8% | $774 |
| 2009 | 214.537 | -0.4% | $801 |
| 2011 | 224.939 | 3.2% | $839 |
Long periods are sampled every 2 years; the calculator above covers any pair of years.
MLA: “Inflation from 1955 to 2011: $100 is worth $839 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1955-to-2011/
APA: InflationCalculator.com. Inflation from 1955 to 2011. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1955-to-2011/
Source: U.S. Bureau of Labor Statistics, CPI-U annual averages (series CUUR0000SA0; category indexes listed on the data sources page). See how these numbers are calculated.