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Finance

Purchasing Power Calculator

Express a future nominal amount in starting-year money using an assumed constant inflation rate.

Amounts stay on this deviceMethod and assumptions below

Your financial inputs

Runs on your device

YOUR FINANCIAL SUMMARY

Your result

Let’s calculate.

Use the Calculate button to see your result.

Estimate based on your inputs and the stated assumptions.

How to use this tool

  1. Enter future nominal amount, annual inflation assumption, years in the future.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Starting-year purchasing-power equivalent = future nominal amount ÷ (1 + inflation/100)^years.

A WORKED EXAMPLE

A future 10,000 at 3% inflation for 10 years has purchasing power equivalent to about 7,440.94 in starting-year money.

What to keep in mind

Uses a constant entered assumption rather than historical CPI data. It does not identify the appropriate inflation index for a country or household.

Common questions

Does this use live inflation figures?

No. You provide the rate. No external data service is used.

Is this the cost of buying today’s basket in the future?

No. This direction discounts a future nominal amount to starting-year purchasing power.

Methodology maintained by ClarityKit. How these tools are built and checked.