Value of $100 in 1918, adjusted to 1977

What happened to prices between 1918 and 1977

Between 1918 and 1977, the Consumer Price Index went from 15.1 to 60.6. Cumulatively, prices increased 301.3%, which works out to an average of 2.38% per year. Put differently, a dollar in 1918 bought what $0.25 buys in 1977.

1918 brought the steepest annual price increase the CPI had recorded: consumer prices rose 18.0% for the year, edging out 1917’s already sharp 17.4% as the economy stayed at full wartime mobilization for most of the year. A first-class stamp cost 3 cents, up from 2 cents the previous November under the War Revenue Act’s wartime tax increases. The war itself ended on November 11, when Germany signed an armistice with the Allied powers after more than four years of fighting in Europe, but the inflation built up over a year and a half of mobilization did not disappear along with the fighting. The bigger public health story that year was the influenza pandemic that reached the U.S. in a mild spring wave and then returned that fall in a far deadlier form, eventually killing roughly 675,000 Americans, more than the country’s combat losses in the war. It hit factories, docks, and shops alongside households, adding disruption to an economy already strained by wartime demand. Prices would keep climbing even after the armistice, into the postwar surge of 1919.

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The destination year: 1977

Consumer prices rose 6.5% in 1977, ticking back up from 1976’s 5.8% as the economic recovery strengthened, wages climbed, and energy costs pushed higher again. The year opened with a warning about that energy dependence: record cold across the Midwest and Northeast in January and February strained natural gas supplies so badly that schools and factories in several states shut down for days to conserve fuel. Jimmy Carter, inaugurated that January, made energy policy a centerpiece of his presidency, and Congress created the cabinet-level Department of Energy that August to consolidate programs built up piecemeal since the 1973 oil embargo. Culture offered some relief from the anxiety: released that May, Star Wars became the highest-grossing film in history to that point, drawing lines around theater blocks for months. The year also closed an era in a different way. Elvis Presley was found dead at his Graceland home on August 16 at age 42, drawing tens of thousands of mourners to Memphis. A median household earned $13,572 in 1977, a new home sold for a median $48,800, and gas averaged 62 cents a gallon. Consumer prices stood 512.1% above their 1913 level, with the energy anxieties of the year setting up the harder shocks of 1978 and 1979.

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