Inflation Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter an amount, an inflation rate and a number of years.
- Read the future cost and the buying power.
How it works
Prices compound: future cost = amount × (1 + rate)^years. The same maths in reverse shows what a future sum is worth in today's money.
Worked example
$1,000 at 3% for 10 years. Costs about $1,344 in 10 years; $1,000 then is worth ~$744 today.
Common mistakes
- Entering the rate as a decimal (0.03) instead of a percent (3).
- Confusing future cost with buying power — they move in opposite directions.
Frequently asked questions
Is this real inflation or a forecast?
It applies the rate you enter — use a historical average or your own estimate. Real inflation varies year to year.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.