Inflation & Purchasing Power Calculator
See what a sum will cost in future years at a given inflation rate, and how much today's money will be worth then. A simple way to picture the erosion of purchasing power. Calculated in your browser.
- 100% free
- Private & safe
- Runs in your browser
Why use Inflation Calculator?
Inflation Calculator gives you accurate results instantly, with the underlying formula shown so you can trust the numbers.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Future cost = Amount × (1 + rate)^years
- Enter an amount today.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Inflation Calculator
- Enter an amount today.
- Enter an inflation rate and years.
- See future cost and future value.
- Adjust the rate.
Examples
- $1,000 at 3% for 10 years costs about $1,344.
- Estimating future living costs.
Formulas
- Future cost = Amount × (1 + rate)^years
Limitations
- Assumes a constant rate; real inflation varies year to year.
- Estimate only, not financial advice.
Frequently asked questions
Where do I get an inflation rate?
Use a long-run average or your region's recent CPI figure.
Does it use real CPI data?
No — it uses the rate you enter.
Stored?
No — local only.
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