The highest-valued currency unit is the currency in which a single unit buys the highest number of any given other currency or the largest amount of a given good. Most commonly the calculation is made against a major reserve currency such as the euro (EUR), the pound sterling (GBP) or the United States dollar (USD).[citation needed]
A high-valued currency is distinct from a hard currency, which is a currency widely accepted as a reliable store of value.[citation needed]