Purchasing power

Inflation Calculator

Estimate how inflation could change the future cost of goods and reduce the purchasing power of money.

Inflation varies over time and by category. A constant rate is a planning assumption, not a forecast.

What this inflation estimate means

If prices rise at the entered rate, the future cost shows approximately how many future dollars may be required to buy what the entered amount buys today. Purchasing power shows the reverse effect.

Why personal inflation may differ

Households spend different proportions on housing, healthcare, transportation, education and food. Your personal experience may differ from a national inflation index.

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Inflation calculator questions

Is this an inflation forecast?

No. It models a constant assumption so you can compare scenarios.

Why does purchasing power decline?

When prices rise, a fixed amount of money generally buys fewer goods and services.

Educational estimate only. It is not an economic forecast or individualized investment, tax or financial advice.

Published by RVR — Founder & Editor, IQlatorMethodology reviewed September 24, 2026Educational information

Translate inflation into purchasing-power change

Inflation describes the broad change in prices over time. A dollar amount that buys a basket of goods today may require a larger nominal amount later. Personal experience can differ from a published index because households purchase different combinations of housing, food, transportation, health care and other goods.

How to use this page

For a constant assumed inflation rate, future equivalent cost equals current cost multiplied by one plus the rate for each year. Historical comparisons should use an appropriate published price index rather than assuming one constant rate.

Practical exampleAt 3% annual inflation, a $1,000 expense is estimated at about $1,159 after five years. This is a planning scenario, not a prediction that every category will rise by the same amount.

Inputs to verify

  • Use nominal dollars consistently when comparing future income and expenses.
  • Test more than one inflation assumption for long planning horizons.
  • Consider that wages, taxes and investment returns may change differently from consumer prices.

Common questions

Does inflation mean every price increases?

No. An index summarizes many categories; individual prices can rise, fall or remain stable.

Is the inflation rate the same in every country?

No. Countries publish different indexes based on local prices, weights and methods.

Methodology and sources: For historical decisions, consult official national statistical agencies and central-bank publications.