U.S. inflation · 1977–1984
$100 in 1977 has the same buying power as
$171
in 1984
| Cumulative price change | 71.5% |
|---|---|
| Average inflation rate | 8.01% per year |
| Converted amount ($100 base) | $171 |
| Price difference ($100 base) | $71.45 |
| CPI in 1977 | 60.6 |
| CPI in 1984 | 103.9 |
| Inflation in 1977 | 6.50% |
| Inflation in 1984 | 4.32% |
| $100 in 1977 → 1984 | $171 |
| $100 in 1984 → 1977 | $58.33 |
Between 1977 and 1984, the Consumer Price Index went from 60.6 to 103.9. Cumulatively, prices increased 71.5%, which works out to an average of 8.01% per year. Put differently, a dollar in 1977 bought what $0.58 buys in 1984.
| Amount in 1977 | Value in 1984 |
|---|---|
| $1.00 | $1.71 |
| $5.00 | $8.57 |
| $10.00 | $17.15 |
| $20.00 | $34.29 |
| $50.00 | $85.73 |
| $100 | $171 |
| $500 | $857 |
| $1,000 | $1,715 |
| $5,000 | $8,573 |
| $10,000 | $17,145 |
| $100,000 | $171,452 |
| $1,000,000 | $1,714,521 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1977 spending costs in 1984, by category:
| Category | Avg. yearly inflation | $100 in 1977 → |
|---|---|---|
| All items (CPI-U) | 8.01% | $171 |
| Energy | 10.74% | $204 |
| Medical care | 9.38% | $187 |
| Housing | 8.80% | $180 |
| Transportation | 8.39% | $176 |
| Core (all items less food & energy) | 8.01% | $171 |
| Food | 6.71% | $158 |
| Apparel | 3.81% | $130 |
Not shown because the BLS began these indexes after 1977: recreation (1993–), education & communication (1993–).
| Year | CPI | Inflation rate | $100 from 1977 |
|---|---|---|---|
| 1977 | 60.6 | 6.5% | $100 |
| 1978 | 65.2 | 7.6% | $108 |
| 1979 | 72.6 | 11.3% | $120 |
| 1980 | 82.4 | 13.5% | $136 |
| 1981 | 90.9 | 10.3% | $150 |
| 1982 | 96.5 | 6.2% | $159 |
| 1983 | 99.6 | 3.2% | $164 |
| 1984 | 103.9 | 4.3% | $171 |
MLA: “Inflation from 1977 to 1984: $100 is worth $171 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1977-to-1984/
APA: InflationCalculator.com. Inflation from 1977 to 1984. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1977-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.