Inflation Adjusted Price Calculator

Inflation adjustment converts a price from one year to another to reflect changes in purchasing power. A dollar today does not buy the same amount as a dollar 20 years ago, and this calculator shows you the real equivalent value.

The formula:

Adjusted Price = Original Price × (1 + Inflation Rate) ^ Years

What the variables mean:

• Original Price is the amount of money in the original year
• Inflation Rate is the average annual rate (entered as a decimal in the formula, so 3% = 0.03)
• Years is the gap between the original year and the target year
• Adjusted Price is the equivalent amount in the target year’s dollars

This works in both directions. Put the later year in the target field to move a historical price forward, or put an earlier year there to ask what today’s money would have felt like back then. The calculator handles the negative span and relabels the result accordingly.

When an average rate is the wrong tool. This page multiplies by one flat rate for the whole span, which is fine for a rough sense of scale and poor for anything specific. Real inflation is lumpy: the US ran above 10% for stretches of the 1970s and under 2% for most of the 2010s. Across a span containing both, an average will be badly wrong in the middle even if it happens to land near the right answer at the end. When you need a particular pair of years rather than an illustration, use published Consumer Price Index figures instead of an assumed rate.

Common average inflation rates by region:

Practical example: A house that cost $150,000 in 2000, at 3% average inflation: $150,000 × (1.03)^25 = $314,066.69 in 2025. This is not a claim about what the house is worth. It says that $314,067 in 2025 represents the same amount of purchasing power as $150,000 did in 2000. Whether the house itself kept pace is a separate question, and in most US markets it did considerably better than inflation over that period.

Tips: Use actual CPI (Consumer Price Index) data for precise calculations between specific years. The average rate is a simplification. Inflation varies year by year, and some categories (housing, education, healthcare) have inflated much faster than others. For investment planning, subtract the inflation rate from your expected return to get the “real return” on your money.