Inflation Calculator
Adjust a money amount for inflation using a rate you choose. Use it to compare past and future values in simple purchasing-power terms.
Adjust for inflation
Enter amount and inflation rate to see future value.
How it works
What this result means
The inflation-adjusted value shows what a dollar amount today would be worth in the future — or what a past amount is equivalent to today — after accounting for rising prices. Money loses purchasing power over time at the inflation rate.
Formula:
Adjusted = Amount × (1 + r)^y
Where:
Amount = original value
r = annual inflation rate as a decimal (e.g. 3% = 0.03)
y = number of years
- Convert the inflation rate to decimal by dividing by 100
- Add 1 and raise to the power of years
- Multiply by the original amount
- Result is the purchasing-power-equivalent value after that period
Example
$100 at 3% inflation for 10 years: $100 × (1.03)^10 ≈ $134.39. That $100 today will cost $134 in 10 years.
Use this tool for
- Comparing prices or salaries across different years
- Estimating future buying power at a chosen inflation rate
- Checking how inflation affects savings goals
Common questions
- What inflation rate should I use? Use historical averages (e.g. 2"3% in many countries) or recent data. For future value, use an assumed long-term rate.
- Does this use real CPI data? No. You enter the rate. For official CPI-based adjustments use your country's statistical office tools.