100 at 3% inflation for 10 years
The same things cost 134.39; money loses 25.6% of its buying power.
Inflation Calculator
See what today's money will cost in the future, or what a future amount is worth today, at an inflation rate.
Result
Enter your values and select Calculate to see the result.
Runs in your browser — nothing you enter is sent to a server.
How the Inflation Calculator works
Choose whether you want the future cost of today's money or the value today of a future amount, then enter the amount, an annual inflation rate and the number of years. The calculator compounds the rate each year. It uses the rate you enter — not historical price data for any country.
Formula
future = today × (1 + r)t
Where:
- r
- Annual inflation rate as a decimal
- t
- Years
Buying power lost = 1 − 1 ÷ (1 + r)t.
Examples
1,000 received in 20 years at 2%
Worth 672.97 in today's money.
Frequently asked questions
What inflation rate should I use?
Many central banks aim for about 2% a year, but actual inflation has often been higher. Use your country's recent rate, or try a range.
Can inflation be negative?
Yes — that's deflation, when prices fall. Enter a negative rate: 100 at −2% for a year becomes 98.
How does this relate to interest?
Savings keep their value only if they earn at least the inflation rate. Compare with the Compound Interest Calculator.
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