I have some news I want to share with you about calculated shipping. Right now, when sellers use the Shipping Calculator to show buyers their shipping costs, a "Calculate" link appears in the Shipping Costs column on search and listings pages. It can take a buyer some time to click through those links when looking at several different items.
Soon we're going to make this a lot easier. If we know your location (because you've signed in, for example), we'll automatically do all the calculations for you as soon as you get to the search and listings page. Later this year, we'll also extend this to the item page — once you sign in, all calculated shipping will be done for you whenever you click into a new item page.