Postage charges China to Australia

I have a couple of packages that need to be sent from Guangdong china to melbourne australia first one is 65cm L x 32.5cm W x 25cm H and weight is 3kg and the other is 40cm x 30cm x 25cm weights 2kg and 2 freight bags 1kg each . how much should i be paying to have them sent, what is the most cost effective