Volumetric weight calculator
Enter each piece in centimetres. The calculator gives the volumetric weight at the air cargo divisor (6000) or the express divisor (5000), and the weight you will be charged for.
How to calculate volumetric weight
air cargo: 6000 · express / courier: 5000
Worked example: one carton 60 × 40 × 40 cm, 12 kg
| Service | Calculation | Volumetric | Charged |
|---|---|---|---|
| Air cargo | 96,000 ÷ 6000 | 16.0 kg | 16.0 kg |
| Express | 96,000 ÷ 5000 | 19.2 kg | 19.5 kg |
The carton weighs 12 kg on the scale, but both services bill it by volume. Express rounds each piece up to the next 0.5 kg, so 19.2 kg becomes 19.5 kg.
Divisors you will meet
| Divisor | Density | Used by |
|---|---|---|
| 6000 | about 167 kg per cbm | Air cargo (IATA standard) |
| 5000 | 200 kg per cbm | Most express and courier networks |
| 4000 | 250 kg per cbm | Some road and postal services |
US carriers quote in inches and pounds with their own divisors. Always check the divisor in your carrier's tariff before you confirm a price.
From volumetric weight to a client quote.
QUAY prices each cost line per kilo of chargeable weight, adds your margin or markup and sends a PDF quote with your letterhead.
Volumetric weight or chargeable weight?
Volumetric weight is the weight at a standard density. Chargeable weight is what you pay: the greater of actual and volumetric weight, rounded up.
Why is express heavier than air cargo for the same box?
Express uses 5000 instead of 6000, so the same box is billed 20% heavier by volume.
How do I convert cubic metres to volumetric kg?
Multiply the cubic metres by 166.67 for air cargo (6000) or by 200 for express (5000). 1.5 cbm is 250 kg in air cargo.