Work out purchasing power parity instantly with clear inputs, formula shown and shareable results.
The PPP exchange rate is the rate at which an identical basket costs the same in both countries. Comparing it with the market rate measures how far a currency deviates from purchasing power parity — the logic behind the Big Mac index — and the average price per basket item is a useful check that the two baskets really are comparable.
PPP rate
PPP rate = Basket cost in A / Basket cost in B
Misalignment
Deviation % = (PPP rate / Market rate - 1) x 100
Average item price
Average = Basket cost / Number of items in the basket
Indicative estimate only. Fees, entitlements, limits and formulas vary by jurisdiction, statute, policy wording and the facts of the case. This is not legal, tax, insurance or financial advice — confirm with a qualified professional or the relevant authority.
Because capital flows, interest differentials and non-traded goods dominate short-run exchange rates. PPP is a long-run anchor, not a trading signal.
Enormously. A basket weighted towards traded goods shows much smaller deviations than one weighted towards local services.