It is essential to know what your shipping costs are going to be before you list an item for sale on eBay. If you are a seller that believes in offering free shipping then it is obviously essential to know what it will cost you to ship the item before you can price it. But even if you charge your buyers shipping, it is a good idea to know what the shipping costs possibilities are. Shipping prices can fluctuate greatly, especially on bigger or heavier items. I like to use this eBay shipping calculator to get an idea of what my item will cost to ship before I list it. Below is a video that provides more details on how to use this specific calculator.