Air Cargo Chargeable Weight Calculator

Billing weight for air shipments — the greater of actual gross and volumetric weight, rounded up to the next 0.5 kg per IATA. Supports the 6000 (air) and 5000 (express) dim factors.

Inputs

Pieces

Length(cm)

Width(cm)

Height(cm)

Dim units

Gross wt / piece(kg)

Weight unit

Dim factor

Outputs

Chargeable wt

—kg

Volumetric wt

—kg

Gross wt

—kg

Charged on

—

Volume

—m³

TACT class

—

Formula

Volume = pieces × L × W × H (converted to cm³)

Volumetric weight (kg) = volume cm³ ÷ dim factor (IATA air 6000, express 5000)

Chargeable weight = max(gross, volumetric), rounded up to the next 0.5 kg

TACT class hint: N (normal) under 45 kg, Q (quantity) at 45 kg and above. The minimum-charge (M) case needs carrier rates and is not computed here.

Source: IATA TACT Rules 3.9.2 (Volume / chargeable weight)