Between 1937 and 2025, US consumer prices rose by 2141.7%. That means $1.4 billion then had roughly the same buying power as $31,383,333,333 now — an average of 3.60% inflation per year over 88 years.
What $1.4 billion in 1937 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 1937 itself ran at 3.6%. 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.
$1.4 billion in 1937 is equivalent in purchasing power to about $31,383,333,333 in 2025. That is an increase of $29,983,333,333 over 88 years, or a total price rise of 2141.7%.
Prices rose at an average of 3.60% per year between 1937 and 2025. Compounded over 88 years, that turns $1.4 billion into $31,383,333,333.
The amount is multiplied by the ratio of the Consumer Price Index in 2025 to the index in 1937: 322.8 divided by 14.4 equals 22.4167. Multiplying $1.4 billion by 22.4167 gives $31,383,333,333. 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, $1,400,000,000 in 2025 has roughly the same buying power as $62,453,532 in 1937.
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.
