According to our data, GBP to USD is the most popular US Dollar exchange rate conversion. Interesting nicknames for the USD include: greenback, cheese, dollar bills, buck, green, dough, smacker, dead presidents, scrillas, paper. FACT 2: The most popular banknotes used in the USA are: $1, $5, So do your best to convert your pounds to dollars in the U.K. before heading home. Tip There's so much to see and do when you're in the U.K., you may end up rushing on your way back home. British Pound Info. The code for the British Pound is GBP. The symbol for the British Pound is £. The code for the American Dollar is USD. The symbol for the American Dollar is $. The Pound is divided into 100 pence. The Dollar is divided into 100 cents. For 2019, one British Pound has equalled average: $ 1.272.