Dimensional weight per carton = length × width × height in centimetres ÷ divisor. Compare with actual weight, take the larger value, apply your chosen upward rounding per carton, then multiply by carton count.
60 × 40 × 40 ÷ 5000 = 19.2 kg
At 10 kg actual weight, the example uses 19.2 kg before rounding. With 1 kg rounding and 2 cartons, the estimate is 20 × 2 = 40 kg.
Confirm with your carrier
Is this a freight price?
No. This is a weight estimate, not a price or carrier-specific rule. Minimum charges, dimension rounding, surcharges and contract terms are not included.
What if cartons have different sizes?
Calculate each combination of size and actual weight separately. Carrier-specific aggregation may differ; confirm the final invoice basis.
Worked example
Illustrative inputs and outputs to help you check your own task.
Light cartons charged by volume
Inputs
60 × 40 × 30 cm, actual weight 12 kg per carton, 4 cartons, divisor 5,000 cm³/kg and rounding up to 0.5 kg.
Output
Dimensional weight is 14.4 kg each. Rounded chargeable weight is 14.5 kg each, or 58 kg total.
The selected rounding is applied to each carton before multiplying by the carton count.
Dense cartons charged by actual weight
Inputs
40 × 30 × 20 cm, actual weight 8.2 kg per carton, 3 cartons, divisor 5,000 cm³/kg and rounding up to 1 kg.
Output
Dimensional weight is 4.8 kg each. The higher 8.2 kg actual weight rounds to 9 kg each, or 27 kg total.
These example settings are not a carrier tariff. Use the divisor and rounding in your own freight agreement.
These tools run in your browser. They do not upload your entries or store them after you leave. Downloads are created on your device. Hosting providers may process standard access logs.