What happened to your money’s purchasing power?
Compare cash against a national CPI basket, Bitcoin against local fiat, and CPI-adjusted Bitcoin value. Annual observations from 2015 onward; country coverage and dates vary. No wallet or account required.
Open the purchasing-power layer on the globe ↗The interactive calculator requires JavaScript. Methodology and coverage remain available below.
Three different comparisons, one consistent baseline
Fiat / basket = 100 × starting CPI / ending CPI. A value of 80 means uninvested cash retains 80% of its original CPI-adjusted buying power. The amount needed to buy a comparable basket = starting amount × ending CPI / starting CPI.
BTC / local fiat uses complete-year mean BTC/USD multiplied by that year’s official mean local-currency-per-USD rate. BTC / basket rebases that local BTC series to 100, then divides by the CPI change. Multiplying separate annual averages is an indicative conversion, not the exact average of daily local BTC prices. No interest, fees or taxes are included. This is not a trading backtest.
Coverage and limits
189 countries/economies have at least two annual CPI observations. Some have fewer FX observations. Known unverified local-unit changes are excluded from BTC comparisons. CPI measures price change within a country, not how expensive one country is relative to another. It does not measure your personal basket. Official FX may be inaccessible or differ from parallel-market rates. Currency regimes and statistical methods can change.
Data retrieved 2026-11-02; latest years vary by source and country. Annual sources are checked automatically; each country shows its check date in the calculator. This is not a live inflation feed. No gaps are filled and no forecasts are generated. Download the complete source-labelled dataset.
Check the source
World Bank / IMF CPI · World Bank / IMF official FX (CC BY 4.0) · Bitcoin price history. Bitcoin is volatile and can lose nominal and real value. Changing the comparison years can change the conclusion.