Is there an easy way to calculate FedEx?

[beadbud]

I shop a lot on eBay and typically items are shipped USPS, which has a calculator, so I can find out if I have been over charged on the cost of postage.

I have been unable to find an easy calculator on FedEx, which to be honest with you, many sellers seem to use the FedEx account at work to pay for the shipping of their items, which is happening a lot lately.

Even so, I would like to be able to find out the the REAL cost of shipping a specific package that I received. Is there anyway to figure this out online. Or do I have to assume that the seller is ripping me off when ever they use FedEx, and leave appropriate feedback when they choose FedEx as a shipping option, because it is impossible to verify the actual postage.

http://postcalc.usps.gov/

PS. I know about and understand all the 'extra' costs for shipping like packing materials, time (which is against eBay rules to charge for), gas (which is also against eBay rules to charge for) and etc.

To be clear, this question is, "Is there an easy way to calculate FedEx?"

This question is NOT "What are all the EXTRA costs a seller has to charge, beyond postage, to mail an item.

[bulkmailtech_usps]

It is NOT against Ebay rules to add a reasonable charge for handling, in addition to the postage.

Sorry, there is no easy way to do what you are asking. Besides, how do you really know the actual weight and dimensions and distance that the package will be?