Inflation Calculator (CPI)
Convert dollar amounts between years using CPI-based inflation estimates. An inflation calculator converts money from one year to another using CPI-based inflation estimates. It’s useful for understanding the buying power of money over time and for rough comparisons between historical prices and today’s dollars.
Inputs
$
From
To
Inflation-adjusted value
Equivalent value
$186.75
CPI (from)172.192
CPI (to)321.577
Inflation+86.75%
Uses CPIAUCSL (FRED). Monthly values are seasonally adjusted.
How to use it
- Enter a dollar amount.
- Select a start and end date (annual average or a specific month).
- Review the inflation-adjusted value.
- Use the notes section to understand the CPI approach.
Key formulas
- Inflation adjustment (CPI ratio)
- Adjusted = Amount × (CPI_end / CPI_start)
FAQ
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Disclaimer
Estimates only. CPI is a broad average and may not represent your personal inflation rate.