Inflation adjuster
Estimate what an amount from one year is worth in another year, using a constant average annual inflation rate you choose. Runs entirely offline in your browser. Educational only.
Enter a nominal amount such as 100. The calculator does not convert currencies.
Year of the starting amount.
Year you want to express the amount in. Can be earlier or later than the start year.
This is your assumption, not a live official series. Try values near a country’s long run average for a rough sketch, then verify with BLS, BEA, or ONS indices.
Defaults (100 from 2000 to 2024 at 2.5 percent) are illustrative. They are not a claim about actual US or UK inflation over that span.
Which price index should I think about?
US readers often compare CPI versus PCE. Headline CPI is widely cited in contracts and media; the Federal Reserve often discusses PCE, especially core PCE. UK readers usually start with CPI or CPIH from ONS. For why economists sometimes set food and energy aside, see core versus headline inflation. Broader context sits on the inflation pillar and the CPI data guide.
If you want the interest rate version of the same idea, the real interest rate calculator converts a nominal rate and an inflation rate into a real rate.
If the price concept is the GDP deflator rather than a consumer index, the GDP deflator calculator links nominal GDP, real GDP, and that deflator. It can also turn two deflator indexes into the percent change between them.
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