Buying power
Inflation calculator
See what today’s purchase could cost later and how much buying power the same number of dollars may retain.
Save comparisons and download reports. Free accounts can keep named calculations, optional client names and export history for later.
How to use this calculator & common questions
Inflation compounds too
A steady annual increase builds on the prior year’s higher price. That is why a modest rate can create a larger cumulative change over a long period.
This calculator uses the constant rate you choose. Real inflation changes each year, and personal spending patterns rarely match a broad national average exactly.
Does this use live CPI data?
No. Enter the average inflation rate you want to test so the scenario stays transparent.
Can inflation be negative?
Yes. A negative rate models deflation, though long-term planning usually tests positive rates.
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