Finance calculator
Inflation Calculator
Estimate how inflation can affect future purchasing power.
Last reviewed
September 2026
September 2026
Enter your details
Results update privately in your browser.
How we calculate
A transparent estimate you can inspect.
Formula
Starting amount × (1 + annual inflation rate) raised to the number of years.
Privacy
Your values are calculated locally and are not sent to a server by this calculator.
Use with care
Results are for informational purposes, not financial, tax, legal, lending, or investment advice.
Understanding your results
Future cost shows how much the same purchase could cost after compounding inflation.
Assumptions and limitations
- Inflation rate is an entered assumption and can differ from actual inflation.
Common questions
Before you decide
What assumptions does this use?
The inputs and assumptions are shown on this page; real outcomes can differ.
Does this use my financial data?
No. Inputs stay in your browser.