How to Calculate Volumetric Weight Using a Calculator
Hello, EngPocket friends! Have you ever wondered why shipping a large but light package (like a pillow) is more expensive than a small but heavy box of books?
This is because couriers use a Dimensional Weight system. Use the calculator below to determine the weight that will be billed (Chargeable Weight) by international couriers such as DHL, FedEx, and UPS.
After that, we will discuss how to calculate volumetric weight manually.
✈️ Volumetric Weight Calculator
What Does Volumetric Weight Mean?
Volumetric weight is a pricing technique used by commercial delivery services. It reflects the density of a package, which is the amount of space a package occupies in a delivery vehicle (plane, truck, or ship) compared to its actual weight.
This method no longer relies solely on weight, but rather on size or dimensions.
Operators will bill you based on Chargeable Weight, which is the higher value between Actual Weight (scale) vs. Volumetric Weight.
If your package is light but the box is large, the price will soar. Therefore, it is important to know how to calculate it before sending goods.
Manual Formula for Calculating Volumetric Weight
VOLUME FORMULA (AIR)
- L, W, H: Dimensions in centimeters (cm)
- 5000: Standard divisor constant for international couriers (DHL/FedEx/UPS).
*For domestic or certain sea freight, the divisor may be 6000. Ask your forwarder.
Calculation Case Example
I have an international air shipment containing mixed pipe fittings (elbows and tees) with dimensions of 60 cm x 50 cm x 40 cm and an actual weight of only 8 kg. Let's calculate which will be billed:
- Calculation: (60 x 50 x 40) / 5000 = 120,000 / 5000
- Result: 24 kg (Volumetric Weight)
Since 24 kg (Volumetric) is greater than 8 kg (Actual), the courier will bill the shipping cost for 24 kg.
CBM Calculator (Cargo Cubication)
Besides volumetric weight, in sea freight shipping, we are familiar with the term CBM (Cubic Meter). This is used to determine the total volume of space used, especially for LCL (Less than Container Load) shipments.
CBM & Cubication Calculator
Manual CBM Formula
CBM FORMULA (M³)
- L, W, H: Must be converted to METERS.
- If your input is in cm, divide the final result by 1,000,000.
FAQ & Important Logistics Tips
1. When to Choose LCL vs FCL?
After you know the total CBM, you can decide on the shipping mode:
- LCL (Less than Container Load): Ideal for small volumes (1-10 CBM). Your goods will be mixed with other people's goods in one container. It is cost-effective, but the risk of mix-ups is higher.
- FCL (Full Container Load): If your cargo volume is close to 15 CBM or more, it is better to rent a full container. It is safer and unmixed.
2. Container Capacity Reality
Do not calculate container capacity purely mathematically. You need to leave room for forklift maneuvers and gaps between boxes (Broken Stowage).
- 20ft Container: Theoretical 33 CBM -> Effectively only fits 25-28 CBM.
- 40ft Container: Theoretical 67 CBM -> Effectively only fits 54-58 CBM.
3. The Wooden Pallet Trap
Remember, the CBM calculator only calculates your items. If the warehouse stacks items on wooden pallets, the volume will increase! A standard pallet can add 15 cm in height.
If you have 20 pallets, that is "empty" volume that you still have to pay for.
4. Does Every Shipping Company Use a Divisor of 5000?
Although 5000 is the standard divisor for international express couriers like DHL, FedEx, and UPS (when using centimeter units), this figure is not universal.
Some domestic couriers or sea freight forwarders might use 6000 or even 7000, depending on their own standards.
So, EngPocket friends, it is best to ask the forwarder you want to use directly first.
- Lower divisor (e.g., 4000): Results in higher volumetric weight (more expensive).
- Higher divisor (e.g., 6000): Results in lower volumetric weight (cheaper).
- Always verify with your specific courier before using a volumetric weight calculator for final budgeting. It is best to ask your forwarder advisor.