Business & Finance

Inflation Calculator

The inflation calculator shows what an amount of money will cost in the future at a given yearly inflation rate, what it is worth in today’s buying power, or which average inflation rate lies between an old price and a new one. It works in any currency.

Future cost
Purchasing power
Rate from two prices
Updated Nov 5, 2026

How inflation compounds

Prices rise by a percentage each year, and each rise builds on the last. After n years at rate r, something that costs 1 today costs (1 + r)ⁿ.

Future cost = amount × (1 + rate)^years

Buying power of today's money later = amount ÷ (1 + rate)^years

Average rate = (new price ÷ old price)^1/years − 1

Example. A basket that costs 1,000 today will cost 1,000 × 1.05¹⁰ = 1,628.89 in ten years at 5% inflation. Equally, 1,000 saved today buys only what 613.91 buys today.

Use the actual inflation figure for your country and period. This tool applies one steady rate, while real inflation varies from year to year.

Questions people ask

What inflation rate should I use?

Use the official CPI average for your country over the period, or a long-run planning figure such as 2% to 4% for stable economies. Higher-inflation economies need higher numbers.

Why do savings lose value?

If your savings earn less than inflation, the same money buys less each year. That is called a negative real return.

How do I find inflation between two years?

Choose the rate option, then enter the old price, the new price and the number of years.