Calculated Shipping
A shipping option where the cost is calculated at checkout based on the buyer's location, the item's weight, and its dimensions. Useful for heavy or bulky items where a flat rate would either overcharge nearby buyers or eat into your margin on distant ones. eBay supports calculated shipping natively.
Where you'll see this
This term is commonly used on:
ebay
Put this into practice
Shopfront handles the hard parts of crosslisting and inventory sync so you can focus on finding and selling.