Estimate how inflation can change future prices, reduce purchasing power, and affect the real value of money over time. Use the calculator below to test scenarios for spending, saving, salary planning, or long-term financial goals.
Enter a starting amount, an average annual inflation rate, and a time horizon. You can also add an optional annual growth rate to compare whether your money, savings, or income is keeping up with inflation.
Assumes a constant annual inflation rate compounded once per year. The optional growth rate can represent savings growth, investment growth, or salary growth.
This breakdown shows how compounding works across the full period. It can make long-term inflation easier to understand than a single end value.
| Year | Estimated price | Real value of original amount | Grown amount | Real value of grown amount |
|---|---|---|---|---|
| Enter your assumptions and click calculate. | ||||
An inflation calculator helps estimate how rising prices can affect the value of money over time. It answers practical questions such as: “What might a $100 item cost in 10 years?” or “How much buying power will my savings have if inflation averages 3%?”
This matters because inflation changes the meaning of a number. A salary, savings balance, or budget target may look bigger in nominal terms later, but if prices also rise, the real value may not improve by much.
Inflation affects everyday spending, long-term savings, retirement planning, emergency funds, and salary negotiations. Even when inflation seems modest, compounding can have a meaningful effect across 10, 20, or 30 years.
This calculator uses a simple compounding model with a constant annual inflation rate.
To estimate the purchasing power of a fixed amount in today’s money, the formula works in reverse:
If you enter an optional annual growth rate, the calculator also estimates whether your money keeps pace with inflation in nominal and real terms.
If an item costs $100 today, inflation averages 3% per year, and the time horizon is 10 years, the estimated future price becomes about $134.39. That same fixed $100 would have purchasing power of about $74.41 in today’s dollars, which means roughly 25.6% of purchasing power is lost.
One of the biggest financial mistakes is looking only at nominal numbers. For example, if your savings grow by 4% per year but inflation averages 3%, your real improvement is much smaller than 4%. If inflation is higher than your growth rate, your nominal balance may rise while your purchasing power still falls.
That is why this calculator includes an optional growth comparison. It helps answer a more realistic question: “Is my money actually growing after inflation?”
Investors often focus on the difference between nominal return and real return. If your portfolio earns 7% in a year and inflation is 3%, the rough real gain is much smaller than 7%. Inflation is one of the key reasons long-term financial planning should always include real-value thinking.
Note: This inflation calculator is for educational purposes only and does not provide financial, legal, tax, or investment advice.