Inflation Calculator
Estimate purchasing power across years.
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Pick a start year amount, an annual inflation guess, and an end year. Official CPI series differ by country; this is a constant-rate estimate.
How to use this tool
- Enter the amounts. Fill in principal, rate, term, or prices. Use the same currency throughout.
- Read the estimate. The figures are a simplified model, not a lender or tax quote.
- Compare a related tool. Open amortization, compound interest, or paycheck if you need another view.
Not an official index
You type the rate. The page does not fetch CPI tables and does not replace a statistics-agency calculator.
Frequently asked
Which inflation number should I use?
Use a published CPI or your own assumption. This tool will not choose one.
Can I deflate a salary?
Yes. Compare the real value of two pay figures with the same rate.
Does it handle deflation?
A negative rate is allowed in the estimate.
Is a constant inflation rate a forecast?
No. You typed the rate. The purchasing-power line is an estimate, not advice.
Are monthly CPI prints applied?
No. Compounding is annual or monthly at the rate you set.