$100 in 1980 is worth $429 today (CPI)
$429
Updated June 1, 2026 · BLS / FRED (CPIAUCSL)
$100 in 1980 is worth $429.24 in today's dollars, adjusted by the official U.S. Consumer Price Index (CPI-U), which rose 329% since then. BLS/FRED data through June 1, 2026.
One hundred dollars in 1980 was a solid sum for a household to manage, well above casual spending. Carrying it forward to today's dollars captures the peak inflation year, when rates hit 13.5% and the Fed raised borrowing costs near 20% to fight it. The figure is purchasing power re-priced, not investment growth. It shows only how far the cost of the same goods climbed away from that original $100.
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Year by year
| Year | Equivalent value |
|---|---|
| 1980 | $111 |
| 1990 | $172 |
| 2000 | $224 |
| 2010 | $282 |
| 2020 | $335 |
| 2026 | $429 |
Selected milestones; the math uses every month of the official series.
Put differently: what cost $100 in 1980 costs $429.24 today. A dollar from 1980 buys only 23% of what it bought then — prices multiplied 4.3× over the period.
1980 was the peak: inflation hit 13.5% and the Volcker Fed raised rates near 20% to break it.
Frequently asked questions
How is the value of $100 from 1980 calculated?
We divide today's CPI-U index level by the 1980 level, as published by the U.S. Bureau of Labor Statistics. The cumulative change is 329% — a factor of 4.29.
Which inflation measure is used?
CPI-U, the broadest official U.S. consumer price index (all urban consumers), the same series used by the BLS inflation calculator.
Does this include investment returns?
No. This is pure purchasing-power adjustment. Money invested in stocks or bonds over the same period would have grown far more than inflation.
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Descriptive, educational content computed from official public data. Not investment advice. Past performance does not guarantee future results.