Inflation Calculator

See how inflation raises future prices and erodes the buying power of money.

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About the Inflation Calculator

Estimate what something will cost in the future at a given inflation rate, or how much less your money will buy.

future cost = cost × (1 + i)^years
buying power = amount ÷ (1 + i)^years

At 3% inflation, $100 of shopping costs about $134 in 10 years, and $100 in cash buys only about $74 of today’s goods.

Where do I find the real inflation rate?

Your national statistics office publishes the consumer price index (CPI). Central banks usually target around 2–3% a year.