🍔Big Mac Index
Real-Time Currency Valuation
Currencies: --
US Base: --
Most Overvalued: --
Most Undervalued: --
Last Updated: --
Big Mac Rankings
Expand each country to see per-city price breakdowns. Country price is the median of all sampled cities.
# Country Local Price USD Price PPP Valuation GDP-Adjusted Implied PPP
World Currencies
All major currencies ranked by M2 money supply. Currencies with Big Mac data show PPP valuation signals.
# Name Price Market Cap PPP Gap Signal
How It Works

Raw Index (PPP)

1
Implied PPP rate = Local Big Mac price / US Big Mac price. This is the exchange rate that would make a Big Mac cost the same everywhere.
2
Compare to market FX rate. If the implied rate diverges from the spot rate, the currency is mispriced according to PPP theory.
3
Valuation % = (Implied PPP / Market Rate - 1) x 100. Positive = overvalued, negative = undervalued vs USD.

GDP-Adjusted Index

1
Raw PPP has a flaw: cheaper goods in poorer countries don't necessarily mean undervalued currencies — labour and trade costs differ.
2
Regression on GDP per capita predicts what the Big Mac "should" cost given a country's income level.
3
Adjusted valuation % = (Actual price - Predicted price) / Predicted price. Strips out the development effect.
For FX Traders
How to read this data: The Big Mac Index is a long-term mean-reversion signal, not a timing tool. Currencies that are deeply undervalued by PPP tend to appreciate over years, not days. Use it as a directional bias filter — if your technical setup aligns with a deeply undervalued currency, PPP supports the long thesis. The GDP-adjusted column is more reliable for developed-market pairs as it controls for income differences. The implied PPP rate is your theoretical fair-value exchange rate — compare it to the current spot rate to gauge how far the market has diverged from purchasing-power equilibrium.
API Documentation
Base URL: https://api-bigmac.dailydollar.xyz/api/v1/burger
GET/latest
Get all countries' latest Big Mac Index data with city breakdowns.
?country=us Optional. Filter by country ID.
GET/history
Get historical index data for a country.
?country=us Country ID (default: us)
?days=30 Number of days (default: 30, max: 365)
GET/rankings
Get countries ranked by a chosen metric.
?metric=raw_ppp_index One of: raw_ppp_index, gdp_adjusted_index, absolute_price_index, usd_price
?order=desc Sort order: asc or desc
?limit=50 Max results (max: 100)
GET/compare
Compare Big Mac prices across countries with pairwise implied exchange rates.
?countries=us,ch,de Required. Comma-separated country IDs (2-5).
GET/countries
List all configured countries with their cities, currencies, and GDP data.
GET/scrape/status
Get the status of the web scraper including last run time and configuration.
POST/calculate
Manually trigger index recalculation for today's data.