The exchange rate changes on a daily basis and the exchange variable is required to do this. There are several sites that will give you the exchange rate for various currencies.
See the link below for one example.
37.890 GBP = 60.972 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
The currency conversion rate from USD to GBP is roughly 1 USD = 0.66 GBP. You can convert USD to GBP and vice versa online by using the currency converter tool at the XE website.
It changes day by day depending on the economy. As of January 13, 2012: 1 GBP = 1.5317 USD 1 USD = 0.6529 GBP
2.6 GBP = 4.1839 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
40.00 GBP = 64.368 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
29 GBP = 46.666 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
437.00 GBP = 703.22 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
45,000.00 GBP = 72,413.00 USD1 GBP = 1.6092 USD1 USD = 0.62143 GBP
175 USD = 109.1825 GBP
99.00 USD = 61.522 GBP1 USD = 0.62143 GBP1 GBP = 1.6092 USD
300.00 USD = 186.43 GBP1 USD = 0.62143 GBP1 GBP = 1.6092 USD
USD is United States Dollar GBP is Great Britain Pound $1 USD= 0.6275 GBP