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Super Utility Hub

Inflation Calculator Online Free

What $100 in 1980 is worth today — US CPI based

  • 100% free
  • No sign-up
  • Files stay on your device
  • No watermarks

How to adjust money for inflation in 3 easy steps

  1. 1

    Enter the amount

    The dollar figure you want to adjust.

  2. 2

    Pick the years

    The original year and the target year (1980–2025).

  3. 3

    Read the result

    The equivalent buying power in the target year.

Why use the inflation calculator tool from Super Utility Hub?

The inflation calculator converts money between any two years using official US CPI annual averages from 1980 through 2025 — the same index the government uses to measure the cost of living.

Choose the year your amount comes from and the year you want it expressed in, and see exactly how much buying power inflation has added or removed.

  • Processes everything in your browser — no upload servers involved
  • Free forever with unlimited uses
  • Works on Windows, macOS, Linux, Android and iOS
  • No watermark or branding on your output, ever

Frequently asked questions

Where does the CPI data come from?

US Bureau of Labor Statistics annual average CPI-U values for 1980–2025. New annual values are added to the site as the BLS publishes them.

Does it work for other countries?

No — this uses US CPI only. Other countries have their own inflation histories, which can differ substantially.

How is buying power computed?

Value in year B = value in year A × (CPI of B ÷ CPI of A). A higher CPI in the target year means the same money buys less.