Inflation Calculator

Calculate future purchasing power loss and equivalent monetary value over time

Starting Amount ($)

Average Annual Inflation Rate (%)

Time Horizon (Years)

Future Equivalent Cost

How to Use This Calculator

Enter the current sum of money in Starting Amount ($).
Specify the expected annual inflation benchmark in Average Annual Inflation Rate (%).
Set the duration for the calculation in Time Horizon (Years).
Click “Calculate Future Value” to evaluate future nominal costs and purchasing power decay.

The Formula Used

The future required amount to match present purchasing power is calculated using compound accumulation:

Future Value = Present Amount × (1 + Inflation Rate)^Years
Purchasing Power Retained (%) = (Present Amount / Future Value) × 100

Frequently Asked Questions (FAQ)

What is inflation?

Inflation is the general increase in prices and fall in the purchasing value of money over time.

What is a typical historical average inflation rate?

Central banks typically target a 2% annual inflation rate, though historical long-term averages often fluctuate between 2.5% and 3.5% depending on economic conditions.

How does inflation erode wealth over time?

If cash holdings earn interest below the rate of inflation, the real buying power of that money decreases every year, even though the nominal dollar amount remains the same.

What is the Consumer Price Index (CPI)?

The Consumer Price Index (CPI) measures the average change over time in prices paid by urban consumers for a market basket of consumer goods and services.