About the Inflation Calculator
Inflation slowly erodes what money can buy. Use this calculator to see how much something will cost in the future, or how much purchasing power an amount loses, at an average annual inflation rate you choose.
How to use it
- Enter an amount and the average yearly inflation rate.
- Enter the number of years.
- Choose “Future cost” or “Purchasing power”.
Formula & method
Future cost = Amount × (1 + i)^years
Purchasing power = Amount ÷ (1 + i)^yearsFrequently asked questions
What inflation rate should I use?
Many central banks target 2–3% a year. For historical comparisons, use the average CPI change for your country over the period.
Results are estimates for general information only and are not financial, tax, legal or medical advice. Please confirm important decisions with a qualified professional.