Value of $100 in 1986, adjusted to 2026

What happened to prices between 1986 and 2026

Between 1986 and 2026, the Consumer Price Index went from 109.6 to 332.243. Cumulatively, prices increased 203.1%, which works out to an average of 2.81% per year. Put differently, a dollar in 1986 bought what $0.33 buys in 2026: the 1986 dollar lost 67.0% of its purchasing power over these 40 years.

1986 delivered the decade’s biggest one-year drop in inflation, and it came almost entirely from a single source: oil. Saudi Arabia abandoned its policy of restraining output to prop up prices, and world crude collapsed from about $27 a barrel to under $10 by midyear. Gasoline, which had averaged $1.12 a gallon in 1985, fell to 86 cents. With energy costs plunging, headline CPI inflation for the year came in at just 1.9%, the lowest annual rate since 1965 and a striking bookend to 1980’s 13.5% peak. The relief was uneven: prices for most goods and services outside energy kept rising at a moderate pace, so households that didn’t drive much or heat with oil felt less of the difference. In October, Congress passed the Tax Reform Act of 1986, a bipartisan overhaul that cut the top individual income tax rate from 50% to 28% while closing many deductions and shelters, the broadest rewrite of the federal tax code since World War II. Between cheap gas and falling interest rates, 1986 read like proof that the inflationary 1970s were a closed chapter, six years after the U.S. economy had felt anything but calm.

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The destination year: 2026

In 2026, prices rose 3.2% and $100 from 1986 had the buying power of $303; the year's average CPI of 332.243 is the level behind every 2026 figure on this page.