Check the current exchange rates on an independent currency website, such as XE.com. This will give you an idea of the current U.S.dollar to pound rates. As of May 2010, $1 U.S. equals 69 British pence. If you can't get online, check before you leave for your trip and write the amount down to keep as a guideline.
Search for a nearby bank. Many U.S. banks have branches in England. However, a lot of major UK and international banks have money changing facilities, particularly in big cities. Present your passport for large amounts and for changing traveler's checks.
Look for a reputable nearby travel agent. Some English travel companies, such as Thomas Cook, offer in-store currency exchange services.
Try a post office. Many branches offer a change bureau with rates comparable to banks and travel agents.
Check the amount received and take your receipt when you've completed the transaction. Change large amounts at a time to avoid repeated service charge costs in some banks or bureaus. However, avoid carrying a large sum of cash on your person for long periods.
Avoid changing money in major tourist areas, airports and large train stations. Rates tend to be higher at these locations.
