This calculator is for informational purposes only and does not constitute financial advice. Results are estimates based on inputs you provide. Consult a qualified financial advisor before making financial decisions.
Inflation Calculator
Calculate the changing value of the US dollar over time using historical CPI data.
Your Details
The dollar value to convert.
Enter a year between 1913 and 2026.
Enter a year between 1913 and 2026.
Calculations are based on the official U.S. Consumer Price Index (CPI-U) averages from 1913 to current period projections.
$100.00 in 1980 has the same purchasing power as $0.00 in 2026.
Frequently Asked Questions
What is Inflation?
Inflation represents the rate at which the cost of a weighted average market basket of goods and services climbs over a period. In simpler terms, it measures how much purchasing power the US Dollar loses over time.
How is this calculated?
We use the historical Consumer Price Index (CPI-U) data published by the U.S. Bureau of Labor Statistics. The formula multiplies your initial amount by the ratio of the ending year CPI over the starting year CPI.
Why does my money lose value?
As the money supply increases and the cost of producing goods rises (due to labor or material costs), prices go up. This means the same $100 buys fewer goods today than it did 20 or 50 years ago.
What is a good inflation rate?
Most central banks, including the US Federal Reserve, target a steady inflation rate of about 2% per year. This gentle rise encourages consumers to spend and invest (since money loses value sitting in cash) while keeping prices stable enough for economic growth.