Finance & planning

Inflation Purchasing Power Calculator

Estimate future equivalent prices and the purchasing power of a fixed amount.

No sign-upBrowser-only calculationsFormula & methodology
01

Your numbers

Use one currency and the same reporting period. Sample values are filled in to help you start.

currency
%
years

Your numbers stay in this browser.

02

Example result

Future equivalent cost13,439.16in your chosen currency
Fixed amount in today’s purchasing power
7,440.94

Uses a constant hypothetical rate, not official historical CPI or a forecast. A specific household’s costs can differ.

Understand the result

How to calculate it

Future equivalent = amount × (1 + inflation) ^ years

Uses a constant hypothetical rate, not official historical CPI or a forecast. A specific household’s costs can differ.

Worked example

This is an illustrative scenario, not a market benchmark. Select “Reset to example” to reproduce it in the calculator.

Amount today
10,000 currency units
Assumed annual inflation
3 %
Time horizon
10 years

Future equivalent cost: 13,439.16

Common questions

Inflation Purchasing Power FAQ

Why show both future cost and purchasing power?

Future cost asks what you may need later to buy the same basket. Purchasing power asks what a fixed nominal amount may buy in today’s terms.

What does this calculation leave out?

Uses a constant hypothetical rate, not official historical CPI or a forecast. A specific household’s costs can differ.

Are my inputs saved or sent to a server?

Calculations run in your browser. We do not send your inputs or results to our server or analytics. A comparison stays in this tab until it is refreshed. A CSV is saved only when you choose to download it. See our privacy policy for ordinary hosting and optional analytics data.

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