U.S. inflation · 1978–1991

Value of $100 in 1978, adjusted to 1991

$100 in 1978 has the same buying power as

$209

in 1991

$100$154$20919781981198519881991$100 · 1978$209 · 1991
Detailed inflation statistics
Cumulative price change108.9%
Average inflation rate5.83% per year
Converted amount ($100 base)$209
Price difference ($100 base)$109
CPI in 197865.2
CPI in 1991136.2
Inflation in 19787.59%
Inflation in 19914.21%
$100 in 19781991$209
$100 in 19911978$47.87

What happened to prices between 1978 and 1991

Between 1978 and 1991, the Consumer Price Index went from 65.2 to 136.2. Cumulatively, prices increased 108.9%, which works out to an average of 5.83% per year. Put differently, a dollar in 1978 bought what $0.48 buys in 1991.

Consumer prices rose 7.6% in 1978, accelerating for a second straight year as rising wages, a weakening dollar, and climbing energy costs outpaced the Federal Reserve’s response. Fed chairman G. William Miller, appointed by Carter that March, kept interest rates too low to slow the trend, a policy later cited as one reason inflation kept building toward the following year’s crisis. California voters responded to their own version of the problem that June, passing Proposition 13 by nearly two to one to cap property tax rates after years of rising home values had pushed tax bills up alongside them. Foreign policy delivered one of the decade’s genuine breakthroughs: President Carter brought Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin together for thirteen days of negotiations at Camp David that September, producing a framework for peace between the two countries that was signed as a treaty the following March. First-class postage rose to 15 cents that May 29, a rate that would hold longer than any other in the decade. The year ended in tragedy: cult leader Jim Jones directed the mass murder-suicide of more than 900 followers at a remote settlement in Guyana that November 18. A median household earned $15,064 in 1978, a new home sold for a median $55,700, and gas averaged 63 cents a gallon. Consumer prices stood 558.6% above their 1913 level, with the decade’s worst inflation still to come.

More about inflation in 1978 →

Common amounts: 1978 dollars in 1991

Amount in 1978Value in 1991
$1.00$2.09
$5.00$10.44
$10.00$20.89
$20.00$41.78
$50.00$104
$100$209
$500$1,044
$1,000$2,089
$5,000$10,445
$10,000$20,890
$100,000$208,896
$1,000,000$2,088,957

Inflation by spending category, 1978–1991

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1978 spending costs in 1991, by category:

Category Avg. yearly inflation $100 in 1978 →
All items (CPI-U) 5.83% $209
Medical care 8.43% $286
Core (all items less food & energy) 6.14% $217
Housing 6.03% $214
Transportation 5.50% $201
Energy 5.28% $195
Food 5.03% $189
Apparel 3.59% $158

Not shown because the BLS began these indexes after 1978: recreation (1993–), education & communication (1993–).

Year by year: CPI and the value of $100 from 1978

Year CPI Inflation rate $100 from 1978
1978 65.2 7.6% $100
1979 72.6 11.3% $111
1980 82.4 13.5% $126
1981 90.9 10.3% $139
1982 96.5 6.2% $148
1983 99.6 3.2% $153
1984 103.9 4.3% $159
1985 107.6 3.6% $165
1986 109.6 1.9% $168
1987 113.6 3.6% $174
1988 118.3 4.1% $181
1989 124 4.8% $190
1990 130.7 5.4% $200
1991 136.2 4.2% $209

Cite this page

MLA: “Inflation from 1978 to 1991: $100 is worth $209 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1978-to-1991/

APA: InflationCalculator.com. Inflation from 1978 to 1991. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1978-to-1991/

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.