Inflation Calculator

See how inflation affects prices and the purchasing power of money over time at any inflation rate.

Runs instantly in your browser — results update as you type.

How does inflation affect my money?

Inflation is the general rise in prices over time. At 3 % a year, something that costs 1,000 today costs about 1,344 in 10 years — and 1,000 in cash buys only about 744 worth of today's goods.

What you get

  • Future cost of today's basket of goods
  • Future purchasing power of today's money
  • Percentage of value lost
  • Years until prices double

The calculator uses one average rate you choose. Real inflation changes year to year; for historical figures, use your country's official consumer price index (CPI). To beat inflation, savings need a return above the inflation rate.

Frequently asked questions

What is a normal inflation rate?

Many central banks target about 2 % a year.

How do I calculate past prices?

Use the official CPI history for your country; this tool projects with a constant rate.

What is the rule of 70?

Divide 70 by the inflation rate to estimate how many years it takes prices to double.