Calculation method
Applies the entered annual rate to the amount for each year, and divides the amount by the same cumulative factor to estimate its future purchasing power.
Saving & investing · General formulas
Inflation and Purchasing Power Calculator
Estimate a future cost and the purchasing power of an amount using your own inflation or deflation assumption. Use the example values or enter your own numbers to explore an estimate.
Currency formatting only—not an exchange-rate conversion. No country-specific tax or government rules are applied.
Your results
See a clear estimate
Enter your details to see a personalized calculation, a simple projection, and the assumptions behind it.
Free to use
No sign-up required
Device saving only when requested
FREE TOOLS · NO ACCOUNT
Compare, keep and export
Calculate first to compare a snapshot or export your current results. No values are sent to our server.
PDF downloads contain inputs, results, sources and the available annual schedule. Use Print for the on-screen charts. Monthly ledgers are not available for every model.
Up to three comparison snapshots
Optional device-only storage
Share assumptions, never dollar amounts
Links include eligible rate, term or frequency assumptions only. Dollar amounts are never included. Recipients must enter their own amounts; the link will not reproduce your full financial scenario.
Assumptions & limits
- The entered inflation or deflation rate remains constant for the selected period.
- This user-defined scenario is not a prediction of actual prices or inflation.
- Basis: user-entered values.
- Basis: standard fixed-payment and time-value-of-money formulas.
Tax or legal rule year: Not applicable — no country-specific rules are used.