Inflation Calculator

Adjust past or future dollar amounts for inflation.

FV = PV × (1 + r)^t

Number of Years

Annual Inflation Rate

Ending Amount

Enter your values above to see the result.

Your Results

Purchasing Power Loss

Value Retained

Nominal vs Real Value

Formulas

FV = PV × (1 + r)^t
PV = FV / (1 + r)^t
r = (FV/PV)^(1/t) − 1

Rule of 70: Years to halve purchasing power ≈ 70 / inflation rate

Historical Inflation Rates

US avg (2000s): ~2.5%
US avg (2020s): ~5%
Hyperinflation: >50%/mo
Target (most CB): 2%

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Pro Tips

Results update as you type — change any field to see the effect immediately.

Check that every value uses the same unit before comparing results.

Use the copy button to paste the inflation figures into a note or spreadsheet.

Nothing is sent to a server, so you can use this with private figures.