There is the $15 U.S. international fee. On each transaction. Then shipping cost, and other things. So unless a high cost item or a must have. Not worth it. Your card if on a major bank will make the conversion for you. at a discounted rate over posted rate at time of purchase. You need check with your bank to know if good in that Country. As some Countries they do not cover. Or will block with out permission from you to accept charges from there.
It will likely cost you a lot more if they are willing to ship overseas because A) the pound is worth more than the dollar and B) you will be responsible for any international customs fees/taxes to bring the product into the US. I would try to find an alternate to whatever you want to buy on a US site.
America
Just tell them that you want to pay in USD and you will get the price in USD
If you use a credit card, the system will do the conversion for you.
caution: shipping costs for US delivery of UK purchases can be significant.
if you're buying with a credit card then your credit card will do the conversion & charge you a fee for it.
Yes, with the proper conversion.
when paying online the currency will automatically be changed
