Shipping fee calculator

1. How to calculate your air freight shipping fee

1.1 Overview and why is it necessary to calculate the chargeable weight?

You may notice that the 02 columns are related to weight on the air waybill: Gross weight and Chargeable weight. Due to freight calculation, Gross weight is the actual weight and the Chargeable weight may be equal to or greater than the actual weight (Gross weight).

That is to say, some small but heavy items will cause loads to reach weight thresholds before the cargo hold is actually filled up. On the contrary, light but bulky items will take up space in the aircraft and fill up the cargo hold before reaching the payload threshold.

Therefore, IATA (The International Air Transport Association) has issued a regulation on the general rules and methods when calculating the chargeable weight for freight services. Accordingly, heavy goods will be calculated according to the actual weight (Gross weight) and bulky goods will be calculated according to the volumetric weight (Volume weight).

1.2 Steps to calculate the international shipping fee

Step 1. Scale the actual weight

Use the scale to determine the weight of the package. Round the weight to the next half a kilogram.

Step 2. Calculate volumetric weight

Calculate the volume by multiplying the length by width and height (each dimension is rounded to the nearest centimeter).

Volumetric weight

L = length in centimeters

W = width in centimeters

H = height in centimeters

(L x W x H)/5000=Volume Weight (kg)

Step 3: Compare actual weight and volumetric weight
Compare the actual and bulk weight of the package, and pick the larger number as the freight weight.
Step 4: Calculate the freight rate
Match the shipping cost of each shipping unit to your package weight to calculate the international shipping fee.

2. Notes when calculating the chargeable weight of the package

Weight will be rounded to 0.5 price step
Every package needs to be packed with shrink film, pallets to strengthen and secure the goods during international shipping. Therefore, the actual weight that a carrier like Janbox express charges will be higher than the total weight of the packages. For that reason, the billable weight of each package will be rounded up to 0.5 to make up for this cost deficit during transportation.
Moreover, it is regulated by IATA and is generally applied to international carriers.

3. Special offer for Vietnamese customers

Janbox supports customers over 50% of the volume to calculate international shipping charges when choosing a shipping service exclusively for customers in Vietnam. Specifically, the volumetric weight will be applied the following formula:

(Length x Width x Height)/9000= Volumetric Weight (kg)
Example: There is an order with an actual weight of 3(kg). The measure of the sides of the package is 30x30x20. 

Compared to the formula another carrier: 

Volumetric weight of cargo smoke = (30x30x20)/5000 = 3.6(kg) rounded to 4(kg)
Compare: Volumetric Weight (4kg) > Actual Weight (3kg)
>>> Chargeable weight = 4(kg)

When choosing Janbox Express

Volumetric weight of cargo (when Janbox is selected) = (30x30x20)/9000 = 2 (kg).
Actual Weight (3kg) > Volumetric Weight (2kg)
>>> Charged weight = 3(kg)

Thus, if customers choose Janbox, they can save over 30% on international shipping fees.
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