Inflation Calculator
An Introduction to Inflation and the Inflation Calculator
What is a “safe” amount of inflation?
Don’t think 2% inflation impacts planning? Think again. Inflation calculations using historical inflation rates or calculate impact using a projected rate.
- U.S. annual inflation rate data since 1913
- Multiple country inflation rates
- Calculates impact of inflation for any number of years
- Calculates reverse inflation
As an investor or wage earner, do you believe that 2% will not hurt you? After all, that has been the Federal Reserve’s target for several years.
If so, you may be surprised to learn that if inflation averaged only 2% for 20 years (roughly half a working lifetime), a wage earner would need to earn more than 40% more today than they earned in 2006 just to maintain the same purchasing power. (In fact, the real figure is close to 50%.)
You might respond that, compared with the 1970s and early 1980s, the period from 1990 through 2020 experienced relatively low inflation, especially before 2022. It would seem unlikely that the average rate was even close to 2%.
However—
that conclusion is incorrect.
During the 30 years from 1996 through 2025, inflation as measured by the U.S. Consumer Price Index averaged slightly more than 2.5%. As a result, the purchasing power of the dollar declined by more than half.
The Calculator-Calculate the Impact of Past or Future Inflation
Information
The German inflation rate for 2025 is an initial estimate provided by the government in December 2025.
Why Use an Inflation Calculator?
As shown above, inflation can significantly affect earnings and investments. An inflation calculator lets you see the impact based on your own situation.
Two common uses for this calculator illustrate the point.
A large share of workers has gone two, three, or more years without a raise. As the U.S. economy improved and unemployment fell below 5%, employers began competing to retain skilled workers by offering raises.
Historical Inflation
If you are in this situation, use the calculator to confirm that your raise increases purchasing power—that is, that it exceeds the rate of inflation.
The U.S. Census Bureau reports that as of 2024 (the latest available year), the median household income was $81,604. Use the historical inflation calculator to determine the income needed in 2026 to maintain the same purchasing power.
It is just over $86,000.
Historical inflation calculations are also helpful for retirement planning and investment planning.
Knowing historical inflation allows you to base future estimates on past experience.
Enter any date range to obtain the average rate of inflation. Then use that rate in the Retirement Calculator to optionally adjust pre-retirement income, post-retirement income, or both. (There have been periods of very low inflation and even deflation, as well as periods of higher inflation. Over many 20-year spans, the average is often between 2% and 3%, though not always.)
You can also use the future inflation calculator with the average rate to estimate the income needed in the first year of retirement.
Future Inflation
Here is a simple example.
If you currently earn $100,000 per year and plan to replace 70% of that income in retirement, your target is $70,000 per year. However, this amount is stated before inflation.
Assume you have 25 years until retirement. What income will you need at retirement to equal $70,000 in purchasing power?
The calculator answers this. At 2.5% inflation, the amount is about $129,000.
The calculator also demonstrates another point.
If you do not plan for inflation-adjusted retirement income and instead target only $70,000, the result is equivalent to living on about $38,000 today (the ending value). That may be acceptable for some households, but it is a very different lifestyle from what a $70,000 income buys today.
The ending value helps make the impact easier to visualize. It is often clearer to think in today’s dollars than to imagine future prices. The future is uncertain. But asking whether you are comfortable living on roughly half of what you expected is easier to evaluate.