Inflation loss calculator by country

Estimate how inflation changes purchasing power using consumer price index (CPI) values. Choose a country, enter an amount, and compare two years to see the inflation-adjusted equivalent amount and inflation shortfall. Over longer periods, even modest inflation can compound into meaningful erosion.

Example: $1,000 in 2000 is equivalent to approximately $1,801 in 2025 (in United States).

Calculate inflation impact Explore countries

Why this feels reliable

Uses CPI ratios (no black-box API)
Country-specific CPI series stored locally
Static pages for fast loading and SEO
Clear inputs, transparent outputs

Want the step-by-step math? See the methodology.

Inputs

Choose a country, amount, and two years. Results stay in the same currency (no exchange rates).

Country

CPI series and currency are country-specific.

Amount (USD)

Nominal amount in USD. Example: $1,000.00

Start year

Earlier year (when you had the money).

End year

Later year (comparison purchasing power).

Results

In 2025 terms, your $1,000.00 from 2000 is equivalent to:

Equivalent amount in 2025

$1,800.55

Estimated inflation-adjusted equivalent in the end year.

Inflation shortfall

$800.55 (44.46%)

Extra amount needed in end-year prices to match the start-year purchasing power.

Inflation factor

1.8005×

CPI_end / CPI_start.

Method

A × (CPI_end/CPI_start)

Defined in docs/DATA_MODEL.md.

CPI values vary by source and methodology. This site uses locally stored CPI series and the formula in docs/DATA_MODEL.md.

How to use this site

Start with any country, choose a start year and end year, and enter an amount. The calculator estimates the inflation-adjusted equivalent amount in the end year and the inflation shortfall. You can also browse prefilled pages for popular year ranges and common amounts.

Inflation is country-specific, so the CPI series used depends on the country you choose. For best results, compare years that exist in the dataset and treat the output as an estimate rather than a precise measure of your personal cost of living.

Start with the authority calculator

Prefer a longer explanation and country coverage notes? Use the inflation loss calculator page.

Explore countries

Each country page includes a prefilled calculator, a CPI context block, computed examples, and related links to popular ranges and amounts.

United States USD United Kingdom GBP Spain EUR Germany EUR France EUR Italy EUR Canada CAD Australia AUD Netherlands EUR Switzerland CHF

What does “inflation loss” mean?

Inflation loss is the reduction in purchasing power over time. If prices rise, the same amount of money buys fewer goods and services.

How do you calculate the inflation-adjusted equivalent?

We use CPI ratios: equivalentEnd = amount × (CPI_end / CPI_start). This estimates what your start-year amount is equivalent to in end-year prices (same currency).

Where does the CPI data come from?

CPI series are stored locally as JSON files under /data/cpi and include a source name and URL per country.

Can I add a new country?

Yes. Add a new CPI JSON file under /data/cpi and add a matching entry in /data/config.ts. The site generates pages from these presets at build time.