Inflation Calculator
See what an amount of money from a past year is worth today (or vice versa) using official historical US CPI inflation data.
$100.00 in 2000 is worth
$187.46
in 2025 — a +87.5% change
Based on annual average US CPI-U data from the Bureau of Labor Statistics. The 2025 figure is a projected estimate pending the final official release.
How the Inflation Calculator works
Enter an amount and two years. The calculator looks up the official annual average Consumer Price Index (CPI-U) for both years and scales your amount by the ratio between them, showing what that purchasing power is equivalent to today.
Frequently asked questions
What is CPI?
The Consumer Price Index (CPI) is a measure published by the Bureau of Labor Statistics that tracks the average change in prices paid by consumers for a basket of goods and services over time.
How far back does this data go?
Annual average CPI-U data is available from 1913 through the present, sourced from official BLS figures.
Can I calculate purchasing power going backward too?
Yes — set the "from" year later than the "to" year to see what a more recent amount would have been worth in an earlier year.