How to Use the Inflation & Purchasing Power Calculator
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1
Enter the Starting Amount ($).
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2
Specify the Average Annual Inflation Rate (e.g. 3.2% historic US average).
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3
Set the Number of Years into the future (or past).
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4
See the Future Equivalent Cost required to buy what today\'s money buys, along with Total Cumulative Inflation % and Lost Purchasing Power.
Practical Example & Use Case
Common Real-World Scenario
Understanding why $100,000 today will only have the purchasing power of ~$55,000 in 20 years at a modest 3% inflation rate without investment growth.
Technical Notes & Limitations
Browser Engine Architecture
Uses standard compound annual inflation compounding: FV = PV * (1 + r)^n.
Frequently Asked Questions
What is "Rule of 72" in inflation?
Dividing 72 by the annual inflation rate tells you roughly how many years it takes for the price of goods to double (e.g. 72 / 3% = 24 years).