FOB price do not include the shipping freight after the goods get across the vessel of boat . FOB price is followed by the load port not destination.
Upon your topic, for your information, including the shipping freight to US or UK that may be C&F PRICE or CFR PRICE
FOB means Free On Board, this term does not include the freight charge to the specific destination.
If your customer need to know about the total costs, as a "seller" (do you mean seller rather than buyer as your identity quoted in your description? ) , you should quote them CIF or C&F. In this case, you can add the updated delivery fees which quoted from your courier or shipping agents ( insurance fee base on CIF) on the FOB price.
Hope it helps. Good luck!