Finance Calculators

Buying Power Calculator

Calculate how much of today's buying power a fixed amount of money will retain in the future after years of inflation.

Future buying power (today's dollars) —

Buying power lost to inflation —

About the Buying Power Calculator

Inflation steadily erodes what a fixed sum of money can buy — a dollar today will purchase less in the future even if the number of dollars you hold stays exactly the same.

Formula: Future Buying Power = Current Amount ÷ (1 + Inflation Rate)^years

This is the same math as present value discounting, applied to your own cash rather than a future payment — it's a useful way to see why holding large cash balances for many years without growth can quietly lose real value.