Finance
Currency Inflation Calculator
See what a past (or future) amount is worth today by applying a single annual inflation rate across any span of years.
Translate past cash into present buying power (or deflate it back) using an average annual inflation rate.
Inflation adjustment
Adjusted value = Amount × (1 + r)^{years}When the end year is after the start, the calculator inflates the amount. If you reverse the years it deflates the cash by dividing with the same compounding factor.
How to use
- Enter the nominal amount you want to translate.
- Set the starting year, ending year, and the average inflation rate.
- Review the inflated/deflated value, total change, and compounding multiplier.
Example
Input: Amount = $5,000, Start = 2010, End = 2024, Inflation = 3.1%/yr
Output: Adjusted ≈ $7,694, Change ≈ $2,694, Multiplier ≈ 1.54
FAQ & notes
Where do the inflation rates come from?
Use the CPI average for your region or any forward-looking estimate—this calculator simply applies whatever annual rate you supply.
Can I model deflation or backwards adjustments?
Yes. Set the end year earlier than the start year and the calculator divides by the growth factor instead of multiplying.