About the Inflation Calculator
Shows how inflation erodes buying power over time, or how prices grew historically, using a user-supplied rate.
What it is
The calculator has two modes: Future Buying Power, which shows what a given amount will be worth in the future (and what amount would be needed to maintain today's purchasing power), and Historical Equivalence, which converts an amount between any two years in either direction.
The inflation rate is entered by you — a reasonable long-run default (6%) is pre-filled but is not live government CPI data. Toggle between International and Indian number formatting depending on which grouping style you prefer.
Features
Two calculation modes
Future buying power and historical year-to-year equivalence.
Compound formula
Uses FV = PV × (1 + r)^n, applied per year.
Year-by-year table
Shows the cumulative erosion or growth, not just the final number.
Deflation handling
Negative or zero inflation rates are handled correctly without errors.