Freight Cost Calculator
Calculate freight shipping cost from shipment dimensions and actual weight, billing on whichever is greater between actual and volumetric (dimensional) weight.
cm
cm
cm
kg
Standard: 5000 for cm³/kg, 139 for in³/lb
$
Total Freight Cost
$60.00
Volumetric Weight
19.20 kg
Chargeable Weight
20.00 kg
Billed On
actual weight
How Freight Cost and Volumetric Weight Are Calculated
Freight carriers bill shipments on whichever is greater: the shipment's actual weight or its volumetric (dimensional) weight — an industry-standard way of charging for bulky, lightweight packages that take up a lot of truck or cargo space without weighing much. Volumetric weight is calculated from the shipment's length, width, and height divided by a dimensional divisor (a standard industry factor — commonly 5000 for centimeters and kilograms, or 139 for inches and pounds). Whichever weight is higher — actual or volumetric — becomes the chargeable weight used to compute the total cost. This is the key difference between freight billing and a simple small-parcel courier calculation, which typically bills on actual weight and distance alone.
Chargeable Weight = MAX(Actual Weight, Volumetric Weight)
Total Cost = Chargeable Weight × Rate Per Unit
Example
A box measuring 60 × 40 × 40 cm with a divisor of 5000 has a volumetric weight of (60 × 40 × 40) ÷ 5000 = 19.2 kg. If it actually weighs 20 kg, the carrier bills on the higher figure — the 20 kg actual weight — since it exceeds the volumetric weight in this case. At $3 per kg, that's a $60 freight charge.
Common Use Cases
- Estimating freight cost for bulky but lightweight shipments before booking a carrier.
- Understanding why a large, light package costs more to ship than its actual weight suggests.
- Comparing packaging options to reduce dimensional weight and lower shipping cost.
- Budgeting freight spend for pallets, crates, or oversized e-commerce shipments.
FAQs
What is volumetric (dimensional) weight, and why does it exist?
Volumetric weight estimates how much space a shipment takes up relative to its actual weight. Carriers use it because a truck, plane, or container has limited space — a large, light box can cost the carrier more in lost capacity than a small, heavy one of the same actual weight, so billing on whichever weight is greater keeps pricing fair to the carrier.
Why do the two common divisors (5000 and 139) differ?
They're the same underlying conversion factor expressed in different unit systems — 5000 is used with centimeters and kilograms, while 139 is the equivalent factor for inches and pounds. Some carriers and freight modes (air vs. ocean vs. road) may use other divisors, so always confirm the exact figure with your carrier.
How is this different from a small-parcel courier calculator?
A courier or small-parcel calculator usually just multiplies actual weight and distance by a flat or tiered rate. Freight billing specifically accounts for dimensional weight because freight shipments are often bulkier relative to their weight — this calculator adds that volumetric-weight comparison, which a simple parcel calculator doesn't need.