Buying power
Inflation calculator
See what today’s purchase could cost later and how much buying power the same number of dollars may retain.
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.
Keep planning
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