GBP USD (British Pound / US Dollar) GBPUSD, often referred to as “The Cable”, a foreign exchange term used to describe the British pound vs the US dollar, is one of the oldest traded currency pairs. In July of 1866, after an earlier failed attempt, the first reliable exchange rate between the British pound and the US dollar was transmitted Current exchange rate BRITISH POUND (GBP) to US DOLLAR (USD) including currency converter, buying & selling rate and historical conversion chart. Bloomberg quickly and accurately delivers US Dollar Index Futures Overview The US Dollar Index is a leading benchmark for the international value of the US dollar and the world's most widely-recognized, publicly-traded currency index.