Calculate inflation impact on purchasing power and see how money value changes over time.
Enter an amount and inflation rate to see how purchasing power changes over time
Inflation means prices rise over time, reducing what your money can buy.
Your money buys less over time due to the erosion of purchasing power.
Inflation compounds over time, significantly impacting long-term savings.
Cross-checked against authoritative formulas (IRS, NIST, ACM) and updated for 2025/2026 tax years and rates.
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An inflation calculator US is a free tool that adjusts a past dollar amount for inflation to show its equivalent purchasing power today, or projects a current amount into future dollars. Our inflation calculator US uses official CPI-U data from the Bureau of Labor Statistics. The inflation calculator US is used for salary negotiations, retirement planning, and historical comparisons.
How it works
Our inflation calculator us lets you see how inflation erodes the purchasing power of a sum of money over time in three steps.
Type the dollar amount you want to project forward or backward in time, such as $100,000 in today's dollars.
Type the expected annual inflation rate. The US long-term average is around 3 to 3.5 percent.
Type how many years you want to project. The calculator shows the future price of the same goods, or the future value needed to match today's buying power.
Understand how inflation, the time value of money, and interest rates shape all financial calculations.
Learn how much you need for retirement using the 4% rule, inflation adjustments, and Social Security estimates.