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Everyday Finance

Inflation Calculator

Estimate how inflation changes future prices and the purchasing power of today’s money.

Best for: Estimate how inflation changes a future price and reduces the purchasing power of money over time.

Your assumptions

Calculate your estimate

Your result

Inflation estimate

Future equivalent price
$13,439.16
Future purchasing power of today’s amount
$7,440.94
Cumulative price increase
34.39%

How to use this inflation calculator

Use this inflation calculator to view the same assumption from two directions: how much a current expense may cost later and how much purchasing power a current dollar amount may retain.

  1. 1

    Choose the amount being compared

    Use a current expense, savings target, or cash amount whose future purchasing power matters.

  2. 2

    Use a planning inflation rate

    Enter an average annual rate suitable for the expense rather than assuming every category follows headline inflation.

  3. 3

    Compare time horizons

    Run several horizons to see how a modest annual rate compounds into a larger long-term difference.

Worked planning example

Example: preserve the buying power of a future goal

Set up

Model the current cost of a goal over ten or twenty years using a base inflation assumption.

Compare

Run conservative and higher-inflation cases while keeping the current amount and timeline fixed.

Takeaway

A savings target stated only in today’s dollars can understate how much may be needed later.

Inflation is uneven and uncertain

A single average rate is useful for scenarios but cannot predict the price path of every expense.

  • Housing, education, healthcare, and other categories can differ from broad consumer inflation.
  • Use multiple rates for long-term decisions rather than one precise forecast.
  • Compare nominal investment returns with inflation when evaluating real growth.

Calculation methodology and assumptions

For this inflation estimate, Silvia uses amount today, average annual inflation rate, time horizon. Estimate how inflation changes future prices and the purchasing power of today’s money. Results are estimates, not quotes, tax advice, or investment recommendations.

Primary references

Frequently asked questions

What inflation rate should I use?

Use a reasonable planning range and test more than one rate. The appropriate assumption depends on the expense category, time horizon, and purpose of the estimate.

What is purchasing power?

Purchasing power describes how much goods or services a dollar amount can buy. Positive inflation reduces the future buying power of an unchanged amount.

Does this use historical CPI data?

No. It compounds the annual inflation assumption you enter. It does not retrieve historical or current Consumer Price Index data.

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