UltimateTools
Money & Finance

How to Use the Inflation Calculator

Enter an amount and the year it's from, along with the year you want to compare it to (often today) — the calculator applies historical inflation data between those two years to show the equivalent purchasing power in the target year.

The Inflation Calculator converts a dollar figure across time using historical price data — here's what to enter.

Entering an amount and two years

Enter the original amount, the year it's from, and the year you want to convert it to — the calculator shows the equivalent amount in the target year's purchasing power, working in either direction (past to present, or present to past).

Interpreting the result

The result reflects how the general price level changed between the two years, based on historical inflation data — it's a broad average, not a prediction for how any specific individual item's price changed, since some goods and services rise faster or slower than the general average.

Frequently asked questions

Can I use this to estimate future purchasing power, not just past?

For future years, the calculator would need to rely on an assumed future inflation rate rather than historical data, since actual future inflation isn't yet known — treat any future-facing result as an estimate based on that assumption, not a guarantee.

Why might this calculator's result differ slightly from another inflation calculator?

Different tools can use slightly different price index data sources or calculation methods — the results should be broadly similar for the same two years, though minor differences between data sources are normal.