About

Inflation Calculator

Any amount, any month since 1913.

Money from
Worth in
Worth in September 2026$199.61
Prices changed99.6%
Average a year2.63%

$100.00 in January 2000 buys what $199.61 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 168.800

BLS CPI-U, U.S. city average, not seasonally adjusted, through September 2026 (3.7% over 12 months). Source

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How it is worked out

  • Value then in later money = amount × CPI later ÷ CPI then
  • Average yearly inflation = (CPI later ÷ CPI then)^(1 ÷ years) − 1
  • A whole year uses that year’s average CPI

Example: $100 in January 2000 is worth $199.61 in September 2026: prices rose 99.6%, 2.63% a year. A $50,000 salary in 2015 needs $71,079 in September 2026 to buy the same. Over the latest 12 months prices rose 3.7%.

About the Inflation Calculator

What money from any month since January 1913 is worth today, from the official BLS consumer price index through the latest release, and a whole list of past amounts restated in today’s dollars.

How to use this tool

  1. Enter an amount and the month or year it is from.
  2. Pick the month or year to compare it with: the latest is filled in.
  3. Paste a list of past amounts to restate all of them in today’s dollars.

Frequently asked questions

Where does the inflation data come from?

The U.S. Bureau of Labor Statistics consumer price index for all urban consumers (CPI-U, series CUUR0000SA0), every month from January 1913 to September 2026, refreshed after each monthly release.

Why is October 2025 missing?

BLS did not collect price data for October 2025 during the federal government shutdown, so there is no CPI for that month. Pick September or November 2025 instead.

Is this the same as the BLS inflation calculator?

It uses the same index and the same method (amount × the ratio of the two CPI values), so results match for the same months. It also restates a whole list of amounts at once and downloads them with the formulas.

How do I adjust sales or wages for inflation?

Paste each year’s figure into the list box. Every amount is restated in today’s dollars, so growth that only kept pace with prices shows as flat, and real growth stands out.