Air Freight Chargeable Weight Guide

When This Applies

This guide explains chargeable weight for air freight — the basis on which airlines calculate freight charges. Understanding chargeable weight helps you avoid surprises and optimise packaging to reduce costs.

Documents Needed

• Exact dimensions and weight of each package
• Airway Bill or booking confirmation
• Freight quote showing chargeable weight calculation

Common Mistakes

• Assuming airlines charge by actual weight — they charge by chargeable weight, which is the higher of actual or volumetric weight
• Using incorrect volumetric divisor — standard is L×W×H (cm) ÷ 6,000 for air freight
• Not consolidating small packages — shipping separately increases chargeable weight
• Ignoring pallet weight and dimensions in total calculation
• Using loose or oversized packaging that inflates volumetric weight

Estimated Timeline and Process

Calculate actual weight: Weigh each package on a calibrated scale.

Calculate volumetric weight: L×W×H (cm) ÷ 6,000 per package.

Determine chargeable weight: Sum of the higher of actual or volumetric for each package.

Freight quote: Airline or forwarder applies their rate per kg of chargeable weight.

How Sea Air Cargo Systems Can Help

We calculate chargeable weight for every air freight shipment and advise on packaging optimisation. Our team consolidates packages where possible and negotiates rates based on accurate weights. Use our CBM Calculator to compute volumetric weight instantly.

How Chargeable Weight Is Calculated

Airlines charge based on chargeable weight, which is the greater of actual weight or volumetric weight. Volumetric weight = (Length × Width × Height in cm) ÷ 5000 (or 6000 for some carriers). If your cargo is light but bulky, you pay for the space it occupies, not just its weight.

Example Calculation

A carton measuring 60 × 50 × 40 cm with an actual weight of 8 kg:
Volumetric weight = (60 × 50 × 40) ÷ 5000 = 24 kg.
Chargeable weight = 24 kg (the higher of 8 kg actual vs 24 kg volumetric).

How to Reduce Chargeable Weight

• Use vacuum packing or compression for soft goods like garments and textiles
• Remove unnecessary packaging at origin if the supplier agrees
• Choose cartons that minimise empty space without compromising protection
• Consolidate small shipments into one master carton to reduce dimensional slack
• Use lightweight but strong packaging materials

Cost Factors to Plan For

Air freight rates from China to India range from $3–$8 per kg depending on season and fuel surcharges. Chargeable weight directly impacts your per-unit landed cost. Use our Landing Cost Calculator to model different packaging scenarios.

When to Contact a CHA

A CHA can review your packing list, estimate chargeable weight, and suggest consolidation or repacking strategies. Contact Sea Air Cargo Systems for air freight optimisation.

Pro tip: Airlines use different divisors (5000 vs 6000) for volumetric weight. Always confirm the divisor with your freight forwarder before quoting customers. Use our CBM Calculator for ground freight comparisons.

Dimensional weight rules also apply to courier shipments through DHL, FedEx, and UPS. Each carrier uses its own divisor, so compare chargeable weight across carriers before selecting the most economical option.

Frequently Asked Questions