How to Use the Historical Inflation & Future Purchasing Power Calculator
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1
Enter current cash savings amount.
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2
Set expected average annual inflation rate (historical US average: 3.2%).
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3
Select time horizon in years (5 to 40 years).
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4
Inspect equivalent future purchasing power and total lost purchasing capacity.
Practical Example & Use Case
Common Real-World Scenario
Seeing that $50,000 kept in a 0% cash account loses 45% of its real purchasing power in 20 years at a 3% inflation rate (equivalent to only $27,683).
Technical Notes & Limitations
Browser Engine Architecture
Calculates compound compounding decay: $PV = FV / (1 + r)^t$.
Frequently Asked Questions
Why is inflation called the 'hidden tax'?
Because your nominal bank balance stays unchanged, but the real quantity of goods and services you can purchase with that money shrinks every year.