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About the Inflation Calculator
This inflation calculator shows how rising prices reduce the purchasing power of money over time. Enter an amount, an annual inflation rate, and a number of years to see the equivalent future cost and the real value of your money. It also adjusts investment returns for inflation to show real gains.
The calculator uses the standard compound formula, purchasing power = amount ÷ (1 + rate)^years. The same structure, with multiplication, projects future prices. For inflation-adjusted returns it applies the Fisher equation, real rate = (1 + nominal return) ÷ (1 + inflation rate) − 1. Tip: use a long-term average inflation rate rather than a single unusual year, since one-off spikes can distort results. For major decisions, consider a financial professional.
- Type the amount of money and the time period you want to measure.
- Enter the annual inflation rate and the number of years.
- Read the adjusted value and the loss or gain in purchasing power.