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U.S. CPI Data
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Inflation Calculator

See how inflation affects the value of money over time

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Inflation Calculation Result

2000 2025
Equivalent Value in 2025
$ 1,850.45
Total Inflation
85.04%
Average Annual Rate
2.34%
Time Period
25 years
Value Comparison:
Original: $1,000.00
Change: +$850.45

Inflation Visualization

Chart will appear here after calculation

Inflation-adjusted value
Cumulative inflation

Understanding Inflation

Inflation is defined as a sustained increase in the prices of goods and services over time. As a result, a fixed amount of money will afford less in the future.

~3%
Average annual U.S. inflation
~10%
Average S&P 500 return

The average inflation rate in the U.S. over the past 100 years has been around 3%. In comparison, the average annual return of the S&P 500 index is approximately 10% over the same period.

The Rule of 72

Quickly estimate how long it takes for prices to double with a given inflation rate by dividing 72 by the rate.

72 รท % = 24 years

At 3% inflation, prices double in approximately 24 years.

This rule works best for rates between 3% and 10%, but provides reasonable estimates for rates below 20%.

Impact on Savings

Inflation and taxes combined make it challenging to grow the real value of money. To maintain purchasing power, investments need to outpace both inflation and taxes.

Tax Impact
Marginal tax rate: ~25%
Required Return
Minimum 4% to preserve value

Historical U.S. Inflation Data

Year Inflation Rate CPI Value Purchasing Power of $100
Showing 10 of 112 years

Additional Resources

Federal Reserve Data

Latest economic indicators and inflation reports

Investment Calculator

Calculate investment returns adjusted for inflation

Inflation Guide

Learn how to protect your savings from inflation