Why is the weight of the parcel much higher than when it was submitted
Almost all transportation companies will charge the international shipping cost according to the bigger one between volume weight and actual weight. Our system charge you according to the actual weight of all of the goods when you submit the delivery, because we cannot know the final package size until the package packed well.
For DHL, FedEx, UPS, Aramex, YOYBUY Express:
Volume Weight = Package of length*width*height (cm) / 5000
Volume Weight = Package of length*width*height (cm) / 7000
For E-express( Length of any side is more than 40cm):
Volume Weight = Package of length*width*height (cm) / 6000
The volume weight calculation of other shipping ways are not fixed due to different countries, you could contact us in time if there is any weight problem for your parcels.