Inflation Calculator
See how inflation changes the purchasing power of your money using real US CPI data from 1913 to 2025, or project future values with a custom rate.
Results
$100.00 in 2000 is equivalent to
$186.96
in 2025 dollars
Total Inflation
86.96%
Avg. Annual Rate
2.53%
Value Change
+86.96%
Time Span
25 years
Purchasing Power Comparison
How Inflation Works
Inflation is the rate at which the general price level of goods and services rises, reducing the purchasing power of each dollar. When inflation is 3% per year, something that costs $100 today will cost about $103 next year.
The US Bureau of Labor Statistics measures inflation using the Consumer Price Index (CPI-U), which tracks a basket of goods and services purchased by typical urban households. This calculator uses annual average CPI values from 1913 through 2025.
The formula for adjusting between years is straightforward:Adjusted Value = Original Value × (CPI in target year ÷ CPI in base year)
For custom projections, the calculator uses compound growth:Future Value = Present Value × (1 + rate)years
Frequently Asked Questions
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