Inflation Calculator
See what a sum will cost in the future or what it is worth in today's money. Enter the amount, the annual inflation rate, and the years.
Quick answer: enter your details below and click Calculate — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Calculators
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How to use
- Enter the amount in today's money.
- Enter the expected annual inflation rate as a percentage.
- Enter the number of years, then read the future cost and today's purchasing power.
About this tool
The future cost grows by compounding: the amount multiplied by one plus the inflation rate, raised to the power of the number of years. Today's purchasing power does the reverse, dividing the amount by that same growth factor. Both views use the same annual rate applied every year.
Frequently asked questions
Why do the two results differ?
Future cost shows what the same basket costs later, while purchasing power shows what a fixed sum can buy later. One grows with inflation and the other shrinks.
Is the inflation rate assumed constant?
Yes, this tool applies the same annual rate every year, so treat the result as an estimate, not a prediction.