Inflation & Purchasing Power Calculator
Understand how inflation erodes the value of savings over time. Calculate what money from past decades would buy in today's dollars, or forecast how much everyday living expenses will cost 10, 20, or 30 years in the future.
How to Use Inflation & Purchasing Power Calculator
Enter Starting Amount
Input a base currency amount (e.g. $1,000).
Choose Time Horizon
Specify the start year and end year (e.g. 2000 to 2026, or 2026 to 2050).
Select Inflation Rate
Use historical average CPI rate (approx 3.2%) or customize your assumed future inflation percentage.
About Inflation & Purchasing Power Calculator
Inflation is the steady rise in the general price level of goods and services, leading to a decline in purchasing power. Compounded over time, even a modest 3% annual inflation rate cuts the purchasing power of cash in half in approximately 24 years (Rule of 72).
Key Features
- Calculates Cumulative Inflation % and Price Multiplier
- Historical US Consumer Price Index (CPI) benchmark modeling
- Future cost projection: see what milk, rent, and cars will cost in 2040 and 2050
- Demonstrates real vs nominal purchasing power erosion
- Interactive annual inflation decay chart
Frequently Asked Questions
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