Money & Finance

Inflation Calculator

Estimate how much a dollar amount from one year is worth in another year using U.S. CPI-U data.

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How to use this calculator

Estimate how much a dollar amount from one year is worth in another year using U.S. CPI-U data.

Equivalent amount = original amount × (CPI in ending year ÷ CPI in starting year).

What the result means

The calculator uses the values you enter and applies the method shown above. Change any input and calculate again to compare another scenario.

Data source

Historical annual-average CPI-U values are based on data from the U.S. Bureau of Labor Statistics Consumer Price Index database. The current embedded series runs through 2025 because a final 2026 annual average is not yet available.

Frequently asked questions

What inflation data does this calculator use?

It uses annual-average Consumer Price Index for All Urban Consumers (CPI-U), U.S. city average.

Does this predict future inflation?

No. The calculator only compares years for which annual CPI data are included.

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Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.