Inflation & Purchasing Power Calculator
Explore how an assumed inflation rate changes future purchasing power.
All values and rates are entered by you. No live rate is assumed.
Your result
Enter your assumptions, then calculate.
Formula and method
Future equivalent cost = current amount × (1 + inflation rate)^years. Purchasing power discounts the future nominal amount by the same assumption.
Worked example
The pre-filled values demonstrate the calculation only. Change every field to match the scenario you want to explore.
Limitations
Inflation differs across goods, locations and time. Enter scenarios rather than treating one rate as certain.
Results exclude terms not entered, may differ because of rounding and should be checked against formal provider disclosures.
Practical next steps
- Run more than one rate or time scenario.
- Record fees and terms the calculator does not include.
- Compare the output with the provider’s written disclosure.
SmartMoney — A REVTEK publication · Reviewed 2026-09-23 · Educational information only · Methodology