The calculation method for large package shipping on AliExpress is as follows:

Charge weight unit: Usually 0.5 kg is used as a chargeable weight unit.

First weight and additional weight: The first weight refers to the first 0.5 kg, and each additional 0.5 kg is used as an additional weight. The first weight fee is usually higher than the additional weight fee.

Actual weight and volume:

Actual weight refers to the actual total weight of the item including packaging.

Volume refers to the method of converting the volume of the item into weight when the item is large in volume and the actual weight is light, based on the carrying capacity of the transport vehicle and the volume limit of the items that can be loaded.

Freight calculation:

When the actual weight is greater than the volume, the freight calculation method is the first weight freight plus (weight (kg) × 2-1) × additional weight freight. For example, for 5 kg of goods, if the first weight is 150 yuan and the additional weight is 30 yuan, the total freight is 150 yuan + (5×2-1)×30 = 420 yuan.

For regular items, the volume calculation formula is length (cm) × width (cm) × height (cm) ÷ 5000 = weight (KG).

Fuel surcharge: International express sometimes adds a fuel surcharge. For example, when the fuel surcharge is 9%, it is necessary to add an additional freight × 9% on top of the freight.

Total cost: The total cost calculation formula is (freight + fuel surcharge) × discount + packaging fee + other fees.