Between 1945 and 2025, US consumer prices rose by 1693.3%. That means $100 then had roughly the same buying power as $1,793 now — an average of 3.67% inflation per year over 80 years.
What $100 in 1945 was worth at each following decade, adjusted for consumer price inflation.
Inflation adjustment uses the ratio of the Consumer Price Index between the two years — the same method the U.S. Bureau of Labor Statistics documents for comparing dollar amounts over time.
The index used is CPI-U (all urban consumers, US city average, all items), base period 1982-1984 = 100. Inflation in 1945 itself ran at 2.3%. The 2025 figure is the latest annual average available and may be revised by BLS.
Note: other inflation calculators may show slightly different results because some use a specific month rather than the annual average, or a different end year. This page uses annual averages throughout, and states both index values above so the arithmetic can be checked.
$100 in 1945 is equivalent in purchasing power to about $1,793 in 2025. That is an increase of $1,693 over 80 years, or a total price rise of 1693.3%.
Prices rose at an average of 3.67% per year between 1945 and 2025. Compounded over 80 years, that turns $100 into $1,793.
The amount is multiplied by the ratio of the Consumer Price Index in 2025 to the index in 1945: 322.8 divided by 18.0 equals 17.9333. Multiplying $100 by 17.9333 gives $1,793. The index is the CPI-U published by the U.S. Bureau of Labor Statistics, base period 1982-1984 = 100.
Running the comparison in reverse, $100 in 2025 has roughly the same buying power as $5.58 in 1945.
Use the full inflation tool to compare any amount between any two years, or project what today's money will be worth in the future.
