Finance & Investment
Inflation Calculator
Inflation — it compounds value for inflation with future = present × (1 + rate)^years, and inverts it to show purchasing power. This page runs that same calculation on your numbers, in your browser: no signup, no uploads, nothing stored.
Give Inflation Calculator your amount today, inflation rate and number of years and it returns the inflation-adjusted value straight away. Built to adjust an amount for inflation, it runs entirely on your device.
Estimate only. Not financial, investment, tax, retirement, pension, crypto, or legal advice. Returns, rates, fees, taxes, inflation, market prices, product rules, and government schemes can change. Verify with official sources or a qualified professional before relying on results.
About this calculator
It compounds value for inflation with future = present × (1 + rate)^years, and inverts it to show purchasing power. It matters any time money changes value over time — savings, loans, investments, prices and pay all reduce to these relationships. Here is the calculation on real numbers: At 6% inflation, 100,000 today needs 100,000 × 1.06 5 = 133,822.56 in 5 years to keep the same buying power. For your own figures, use the calculator above — same method, your inputs, computed on-device.
How to use
- Enter the amount in today's money.
- Type the expected annual inflation rate as a percentage.
- Set the number of years to project forward.
- Tap Calculate to see the future cost of that amount.
Why use the Inflation Calculator
Instant
Every figure is computed on your device the moment you tap Calculate.
Private
Your numbers stay in your browser; nothing is sent to a server or saved.
Free
No signup, no paywall, and no ads placed inside your results.
Works offline
Once the page has loaded it keeps working even on a weak connection.
Mobile-first
Laid out for phones and tablets just as much as for desktops.
Honest estimates
Uses simplified formulas for educational estimates; actual results vary with taxes, fees, compounding rules, market returns, scheme rules, inflation, and local regulations.
Common uses
Use it for comparing past and present value
Use it when adjusting prices for inflation
Inflation in long-term financial planning
Use it for retirement purchasing-power checks
Use it for real-return calculations
Use it for inflation-adjusted figures
Technical notes
Inflation Calculator compounds value for inflation with future = present × (1 + rate)^years, and inverts it to show purchasing power.
Figures assume the rate and amounts you enter stay fixed and exclude fees, taxes and charges unless a field asks for them.
Because it runs locally, results appear instantly with no server round-trip.
Worked example
At 6% inflation, 100,000 today needs 100,000 × 1.065 = 133,822.56 in 5 years to keep the same buying power.
FAQ
How is the future cost calculated?
Today's amount is grown by the inflation rate each year, so the future cost equals the amount times (1 + inflation) raised to the number of years.
Does the Inflation Calculator send my data to a server?
No. The Inflation Calculator runs entirely in your browser with JavaScript; the values you enter never leave your device and nothing is uploaded or saved.
Why does inflation reduce purchasing power?
As prices rise, each unit of money buys fewer goods, so the same nominal amount represents less real spending power over time.
Should investment returns beat this rate?
To preserve purchasing power, an investment generally needs to return more than the inflation rate; otherwise its real value falls.