Inflation Calculator
Inflation calculator: what today’s money will cost in the future, how purchasing power falls, or the average inflation rate between two prices.
Cfuture = Ctoday · (1 + π)t
How to use this calculator
- Choose the quantity you want under “Solve for”.
- Type the known values and pick their units: any combination works.
- The result updates as you type. Open “Show the steps” to see the substitution.
Prices grow with inflation, so the same purchase costs more each year: Cfuture = Ctoday·(1 + π)ᵗ. The calculator also shows how much today’s amount will be worth in today’s money after t years.
Use it to plan savings goals and retirement, or solve for the average inflation rate between two prices.
Results are estimates for information only and do not constitute financial advice. Your lender’s or bank’s figures may differ.
Formula
Cfuture = Ctoday · (1 + π)t
| Symbol | Quantity | Units |
|---|---|---|
| Ctoday | Amount today | $, €, £ |
| π | Average annual inflation | %, × |
| t | Years | years, months |
| Cfuture | Equivalent future cost | $, €, £ |
Worked example
Given: Ctoday = 1,000.00 $ · π = 3 % · t = 10 years
Cf = C0(1 + π)t
Result: Cfuture = 1,343.92 $
Frequently asked questions
What will $1,000 cost in 10 years at 3 % inflation?
$1,343.92. In other words, $1,000 kept in cash buys only about $744 of today’s goods.
How do I find the inflation rate between two prices?
Select π under “Solve for” and enter both prices and the number of years.