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Inflation Calculator

Estimate how inflation changes future prices and how much buying power your money may lose over time.

Quick timelines

Future Cost at This Inflation Rate
$1,343.92
after 10 years
Cumulative inflation34.39%
Dollar increase$343.92
Buying power of today's amount$744.09
Buying power lost$255.91
Rule of 72 doubling time24.0 years
Inflation compounds just like investment returns do. A seemingly modest annual rate can materially change how much future dollars buy over long periods.
Last updated: March 2026Reviewed by CalculWise editorial team
Methodology: Future cost is estimated by compounding a fixed annual inflation rate over the selected number of years. Buying power is the inverse of that inflation factor.
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Inflation is the quiet force behind long-term planning

Inflation rarely feels dramatic in a single month, but it compounds over time. That is why retirement goals, emergency-fund targets, and future lifestyle estimates need to account for more than nominal dollars.

What this calculator is best for

  • Estimating how much a future purchase may cost.
  • Seeing how much current cash could lose in buying power.
  • Adding inflation context to savings and retirement goals.

Use real returns, not just nominal returns

If an investment earns 7% but inflation runs at 3%, your real wealth growth is much lower than 7%. That distinction matters everywhere long time horizons are involved.

Frequently Asked Questions

What does an inflation calculator show?

It shows how a current amount grows in future nominal dollars at a chosen inflation rate, and how much buying power today’s amount has after that inflation compounds.

Why does 3% inflation matter so much over time?

Because inflation compounds. A 3% rate sounds small for one year, but over decades it materially increases future prices and reduces what the same dollar amount can buy.

Is inflation the same every year?

No. Real inflation changes over time and varies by country and spending category. This calculator uses a steady assumed rate to help with planning rather than historical exactness.

How should I use this for investing?

Use inflation to translate nominal returns into real returns. If your portfolio grows 7% annually while inflation runs at 3%, your real gain is much smaller than the headline number suggests.