Personal finance
Inflation Calculator
Estimate how rising prices may change the future cost of goods and services.
Personal finance
Purchasing Power Calculator
See how a constant rate of inflation may reduce what a fixed amount can buy, and estimate the future amount needed to preserve equivalent purchasing power.
Last reviewed: August 23, 2026 · Free to use · No registration
Interactive tool
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Results
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Detailed breakdown
Calculation details
Before using the estimate
Important considerations
- The calculation assumes constant inflation.
- Personal inflation can differ from a national price index.
- Investment returns or interest earned on the money are not included.
Common questions
Purchasing Power Calculator FAQs
Why does purchasing power fall when prices rise?
A fixed amount buys fewer goods and services when their prices increase.
How is this different from the Inflation Calculator?
Inflation projects the future price of an item; purchasing power discounts a fixed future amount back into today’s buying power.
Can purchasing power increase?
A negative inflation rate would imply deflation, but this tool focuses on non-negative inflation scenarios.