US Inflation CalculatorUS inflation calculator, 1913 to October 2026
See what a dollar from any month since January 1913 is worth in another month, using the official US consumer price index. Data from the Bureau of Labor Statistics, read on 13 November 2026. Nothing you type leaves your device.
What $100 from a year is worth in October 2026
How it works
The calculator uses the index of consumer prices. If the index was 100 in one month and 337 in another, prices are 3.37 times higher, so $100 in the first month buys what $337 buys in the second. The latest month in the data is October 2026 (index 337.511); $100 from January 1970 (index 37.8) is worth $892.89 now. On average, prices rose 3.93% a year over that time.
Common questions
How do I find what $100 from an earlier year is worth today?
Multiply by the index today and divide by the index then. For $100 in January 1970 (index 37.8) and October 2026 (index 337.511) that is $892.89.
Which price index is used?
The US Consumer Price Index for All Urban Consumers (CPI-U), all items, U.S. city average, not seasonally adjusted, published by the Bureau of Labor Statistics.
Why is there no data for October 2025?
The Bureau of Labor Statistics data read for this site show no value for that month.
Sources
- U.S. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers (CPI-U), U.S. city average, all items, not seasonally adjusted, index 1982-84 = 100 (series CUUR0000SA0), January 1913 to October 2026, read through the BLS public data API (bls.gov/cpi) on 13 November 2026.
- BLS shows no value for October 2025 in the data, so that month is left out; yearly figures are the average of the 12 months and are shown only for 1913 to 2024.
- Every result is index arithmetic: amount × (index in the later month ÷ index in the earlier month).
Data from the U.S. Bureau of Labor Statistics read on 13 November 2026; latest month October 2026. This site is independent and not connected with the BLS or any government. The CPI is an average of urban consumer prices and measures nothing about your own spending. Results are estimates, not financial advice.