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Inflation Calculator

See what something will cost in future, what a sum of money will really be worth after inflation, or the average inflation rate between two prices.

Calculated on your device
$
What something costs now, or a sum of money.
Enter a number, for example 1250 or 19.99.
$
A sum of money you'll have, or need, in future.
Enter a number, for example 1250 or 19.99.
% a year
A long-run average for your country, or the central bank's target.
Enter a number, for example 1250 or 19.99.
$
Enter a number, for example 1250 or 19.99.
$
Enter a number, for example 1250 or 19.99.
years
Enter a number, for example 1250 or 19.99.
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Free to use on your blog or business site. Copy this code and paste it into your page's HTML.

Works in WordPress (Custom HTML block), Wix (Embed code), Squarespace (Code block), Webflow and Shopify pages.

How to use the inflation calculator

  • Future cost: what something that costs a given amount today will cost after a number of years.
  • What money is worth: what a future sum will buy in today's money. Useful for savings goals, pensions and long-term plans.
  • Inflation rate between two prices: the average yearly inflation that turned one price into another.

Inflation formulas

Future cost = Today's cost × (1 + inflation)years
Today's value = Future amount ÷ (1 + inflation)years
Average inflation = (End price ÷ Start price)1/years − 1

Worked examples

At 3% a year, something costing 1,000 today will cost 1,000 × 1.0310 = 1,343.92 in 10 years.

The other way round, 1,000 in 10 years will buy what 744.09 buys today: about 25.6% of its buying power is gone.

A price that rose from 100 to 150 over 10 years grew by an average of 4.14% a year.

Which inflation rate should I use?

Use your country's official inflation figures, published by its statistics office or central bank. Many central banks aim for about 2% a year, including the US Federal Reserve, the European Central Bank and the Bank of England; the Reserve Bank of India's target is 4%. Real inflation can be well above or below target for years at a time, so it's sensible to try a few rates.

To see how savings can keep ahead of inflation, try the investment calculator or the retirement calculator.

Frequently asked questions

Why isn't 10 years of 3% inflation just 30%?

Because inflation compounds: each year's rise is on top of the last. Ten years at 3% is a 34.39% rise in total.

Can inflation be negative?

Yes, that's deflation, when prices fall. You can enter a negative rate.

Formulas checked 29 October 2026. How we test our calculators. This calculator is for planning and education, not financial, tax or legal advice.