Planning Studio
Inflation Calculator
Convert a dollar amount across time in either direction under an assumed annual inflation rate.
Your assumptions
The amount you want to convert.
Compared against today, 2026.
Defaults to 3.2%, a commonly cited long-run historical average — not this year's actual rate. Fully adjustable.
Look backward
What did $100.00 in 2006 cost in 2026 dollars, at your assumed rate?
- Equivalent in 2026
- $187.76
- Difference
- $87.76
This is a hypothetical conversion using your assumed rate — this calculator is not yet wired to actual historical CPI data (see the Planning Studio disclosure).
Look forward
What will $100.00 today be worth, in today's purchasing power, 20 years from now?
- Today’s buying power, 20 yr out
- $53.26
- Nominal $ needed in 2046 for the same goods
- $187.76
Both figures are purely hypothetical, driven entirely by your assumed rate above.
Illustrative only — not a guarantee
This tool produces an illustrative, hypothetical projection based entirely on the numbers you enter. It is not a guarantee or prediction of future results, and it is not personalized investment, tax, or legal advice. Every assumption shown here (contribution amount, assumed rate of return, inflation, fees, and time horizon) is fully editable and has not been validated against your actual financial circumstances, goals, or risk tolerance.
Dollar figures are nominal (not adjusted for inflation) unless a figure is explicitly labeled real / inflation-adjusted. Actual investment results will vary and may be significantly lower or higher than any figure shown here.
Results from this tool may vary with each use and over time: changing any input, or running this same tool again later as your numbers or the markets change, can produce a different outcome than the one shown here.