Big Mac PPP Calculator
Pick an amount, a source currency, and a destination country. See what your money buys at market exchange rate vs the Big Mac PPP-implied rate — and how much the destination currency is over- or under-valued.
How it works
The Big Mac Index, invented by The Economist in 1986, uses the local price of a Big Mac as a proxy for purchasing power parity (PPP). If a Big Mac costs $5.79 in the United States and ¥480 in Japan, the implied PPP exchange rate is ¥82.90 per US$1. If the actual market rate is ¥152, the yen is implied to be ~46% undervalued against the dollar by Big Mac PPP.
This calculator does that math instantly for any pair of 56+ countries we track, using the most recent Big Mac prices plus live FX rates.
What the numbers mean
- At market exchange — what your bank or PayPal would give you today
- At Big Mac PPP rate — what the rate would be if a Big Mac cost the same everywhere (theory)
- PPP gap — positive means destination currency appears overvalued (your money buys less than PPP would predict); negative means undervalued (you get more burger per dollar)
- Big Macs reference — how many burgers your amount actually buys in each country, at current local prices
Caveat: the Big Mac Index is a long-term mean-reversion signal, not a timing tool. Deeply undervalued currencies tend to appreciate over years, not days. See the limits of the Big Mac Index for a fuller discussion. Our prices are in-store recommended, not delivery-platform inflated.
Source data
Big Mac prices from The Economist Big Mac Index + our editorial research for countries the Economist doesn't cover. Live FX rates daily. For methodology, see /about#methodology. Full dataset downloadable at /data.
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