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Printed July 20, 2026 · https://trycleartally.com/inflation-calculator
Estimates for educational purposes only — not financial advice. See https://trycleartally.com/disclaimer.
Inflation Calculator
See what a dollar amount from one year is worth in another, using official CPI data — or project a sum forward at an inflation rate you choose.
Reviewed by the ClearTally editorial team · Last updated July 20, 2026 · Methodology & sources
$100 in 2000 is worth
$186.96
in 2025 dollars
Total price change
+87.0%
Average per year
+2.53%
over 25 years
Based on the U.S. city-average CPI for all urban consumers (CPI-U), the standard headline measure. Your personal inflation depends on what you actually buy — housing, healthcare, and education have historically outpaced the average, so treat this as a broad benchmark, not your exact cost of living. Estimate only, not financial advice.
Inflation Worksheet
Equivalent value
$186.96
Based on CPI-U (U.S. city average). Personal inflation varies. Not financial advice.
Calculated using the standard formulas described at https://trycleartally.com/methodology — for educational estimates only, not a quote or financial advice. Verify with your lender or financial institution before making decisions.
Planning ahead? Inflation is why a retirement projection needs a return well above it to grow in real terms, and why the salary raise calculator asks what your raise is really worth once prices move.
How it works
Prices are measured by the Consumer Price Index (CPI), a running tally of what a typical basket of goods and services costs. Because it's an index rather than a dollar figure, converting money between two years is just a ratio: take the amount, multiply by the later year's index, divide by the earlier year's. That's all “in today's dollars” means — the same buying power, restated at current prices.
The year-to-year mode uses annual-average CPI-U data (all urban consumers), currently covering 1913–2025. The fixed-rate mode ignores the data and instead compounds a rate you pick, which is the better tool for looking forward — nobody knows next decade's inflation, so you model a scenario rather than read off history.
Example: $100 in 1980 had the buying power of about $314in 2020. Prices rose 214% over those 40 years, which works out to an average of 2.90% a year. The yearly figure feels small; the cumulative one is why your grandparents' prices sound made up. That's compounding running quietly in the background of everyday life — the same force behind the compound interest calculator, just working against you instead of for you.
FAQ
The year-to-year figures use CPI-U — the Consumer Price Index for All Urban Consumers, U.S. city average — published by the Bureau of Labor Statistics and mirrored on the Federal Reserve's FRED database. This tool uses annual averages, currently through 2025, and it's built into the site rather than fetched live, so it's fast and doesn't change under you mid-session. It refreshes once a year after the December release lands.