U.S. inflation · 1970–1984
$100 in 1970 has the same buying power as
$268
in 1984
| Cumulative price change | 167.8% |
|---|---|
| Average inflation rate | 7.29% per year |
| Converted amount ($100 base) | $268 |
| Price difference ($100 base) | $168 |
| CPI in 1970 | 38.8 |
| CPI in 1984 | 103.9 |
| Inflation in 1970 | 5.72% |
| Inflation in 1984 | 4.32% |
| $100 in 1970 → 1984 | $268 |
| $100 in 1984 → 1970 | $37.34 |
Between 1970 and 1984, the Consumer Price Index went from 38.8 to 103.9. Cumulatively, prices increased 167.8%, which works out to an average of 7.29% per year. Put differently, a dollar in 1970 bought what $0.37 buys in 1984.
| Amount in 1970 | Value in 1984 |
|---|---|
| $1.00 | $2.68 |
| $5.00 | $13.39 |
| $10.00 | $26.78 |
| $20.00 | $53.56 |
| $50.00 | $134 |
| $100 | $268 |
| $500 | $1,339 |
| $1,000 | $2,678 |
| $5,000 | $13,389 |
| $10,000 | $26,778 |
| $100,000 | $267,784 |
| $1,000,000 | $2,677,835 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1970 spending costs in 1984, by category:
| Category | Avg. yearly inflation | $100 in 1970 → |
|---|---|---|
| All items (CPI-U) | 7.29% | $268 |
| Energy | 10.32% | $396 |
| Medical care | 8.52% | $314 |
| Housing | 7.76% | $285 |
| Transportation | 7.54% | $277 |
| Food | 7.16% | $263 |
| Core (all items less food & energy) | 6.96% | $256 |
| Apparel | 3.97% | $172 |
Not shown because the BLS began these indexes after 1970: recreation (1993–), education & communication (1993–).
| Year | CPI | Inflation rate | $100 from 1970 |
|---|---|---|---|
| 1970 | 38.8 | 5.7% | $100 |
| 1971 | 40.5 | 4.4% | $104 |
| 1972 | 41.8 | 3.2% | $108 |
| 1973 | 44.4 | 6.2% | $114 |
| 1974 | 49.3 | 11.0% | $127 |
| 1975 | 53.8 | 9.1% | $139 |
| 1976 | 56.9 | 5.8% | $147 |
| 1977 | 60.6 | 6.5% | $156 |
| 1978 | 65.2 | 7.6% | $168 |
| 1979 | 72.6 | 11.3% | $187 |
| 1980 | 82.4 | 13.5% | $212 |
| 1981 | 90.9 | 10.3% | $234 |
| 1982 | 96.5 | 6.2% | $249 |
| 1983 | 99.6 | 3.2% | $257 |
| 1984 | 103.9 | 4.3% | $268 |
MLA: “Inflation from 1970 to 1984: $100 is worth $268 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1970-to-1984/
APA: InflationCalculator.com. Inflation from 1970 to 1984. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1970-to-1984/
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.