U.S. inflation · 1955–1978
$100 in 1955 has the same buying power as
$243
in 1978
| Cumulative price change | 143.3% |
|---|---|
| Average inflation rate | 3.94% per year |
| Converted amount ($100 base) | $243 |
| Price difference ($100 base) | $143 |
| CPI in 1955 | 26.8 |
| CPI in 1978 | 65.2 |
| Inflation in 1955 | -0.37% |
| Inflation in 1978 | 7.59% |
| $100 in 1955 → 1978 | $243 |
| $100 in 1978 → 1955 | $41.10 |
Between 1955 and 1978, the Consumer Price Index went from 26.8 to 65.2. Cumulatively, prices increased 143.3%, which works out to an average of 3.94% per year. Put differently, a dollar in 1955 bought what $0.41 buys in 1978.
| Amount in 1955 | Value in 1978 |
|---|---|
| $1.00 | $2.43 |
| $5.00 | $12.16 |
| $10.00 | $24.33 |
| $20.00 | $48.66 |
| $50.00 | $122 |
| $100 | $243 |
| $500 | $1,216 |
| $1,000 | $2,433 |
| $5,000 | $12,164 |
| $10,000 | $24,328 |
| $100,000 | $243,284 |
| $1,000,000 | $2,432,836 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1955 spending costs in 1978, by category:
| Category | Avg. yearly inflation | $100 in 1955 → |
|---|---|---|
| All items (CPI-U) | 3.94% | $243 |
| Medical care | 5.46% | $340 |
| Food | 4.22% | $259 |
| Transportation | 3.86% | $239 |
| Apparel | 2.82% | $190 |
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 |
| 1956 | 27.2 | 1.5% | $101 |
| 1957 | 28.1 | 3.3% | $105 |
| 1958 | 28.9 | 2.8% | $108 |
| 1959 | 29.1 | 0.7% | $109 |
| 1960 | 29.6 | 1.7% | $110 |
| 1961 | 29.9 | 1.0% | $112 |
| 1962 | 30.2 | 1.0% | $113 |
| 1963 | 30.6 | 1.3% | $114 |
| 1964 | 31 | 1.3% | $116 |
| 1965 | 31.5 | 1.6% | $118 |
| 1966 | 32.4 | 2.9% | $121 |
| 1967 | 33.4 | 3.1% | $125 |
| 1968 | 34.8 | 4.2% | $130 |
| 1969 | 36.7 | 5.5% | $137 |
| 1970 | 38.8 | 5.7% | $145 |
| 1971 | 40.5 | 4.4% | $151 |
| 1972 | 41.8 | 3.2% | $156 |
| 1973 | 44.4 | 6.2% | $166 |
| 1974 | 49.3 | 11.0% | $184 |
| 1975 | 53.8 | 9.1% | $201 |
| 1976 | 56.9 | 5.8% | $212 |
| 1977 | 60.6 | 6.5% | $226 |
| 1978 | 65.2 | 7.6% | $243 |
MLA: “Inflation from 1955 to 1978: $100 is worth $243 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1955-to-1978/
APA: InflationCalculator.com. Inflation from 1955 to 1978. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1955-to-1978/
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.