Inflation Calculator
Calculate the inflation-adjusted value of money between any two years. Find out how much $1,000 from 1990 is worth today, or how much you'll need in the future to match today's purchasing power. Uses compound inflation formula.
Complete User Guide
Enter an amount, start year, end year, and annual inflation rate. Select 'Adjust for Inflation' to find what a past amount equals today, or 'Find Past Value' to reverse the calculation.
The Mathematical Formula
Adjusted Value = Original Amount × (1 + r)^n
FV = PV × (1 + r)^n where r is the annual inflation rate and n is the number of years. The US historical average is approximately 3–4% per year.
Frequently Asked Questions
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