Chargeable Weight Calculator
A chargeable weight calculator tells you what a carrier will actually bill you for a shipment. Airlines and couriers charge by the greater of your cargo’s real weight and its volumetric (dimensional) weight, which is your package volume divided by a carrier factor. A light but bulky box can easily bill at double its scale weight.
This tool covers air freight (IATA standard factor 6000), express couriers (DHL, FedEx, UPS and TNT presets) and ocean freight, with a custom factor option for any carrier. Enter the dimensions and actual weight to get the volumetric weight, the chargeable weight, the package volume and a plain-English verdict on which weight your carrier will use.
The calculator shows exact figures before carrier rounding. Most carriers round the chargeable weight up to the next half or whole kilogram and apply minimum charges, so confirm the final billed weight on your quote.
Quick Answer
Key takeaways
- Chargeable weight is always the greater of actual weight and volumetric weight, never the two added together.
- The divisor decides the answer: 6000 for standard air, 5000 for DHL, FedEx and TNT express presets, 4000 for UPS, 1000 for ocean FCL and LCL in this tool.
- Measure the packed outside of the shipment. Carriers re-measure, and a few centimetres of bulge can move you into volumetric billing.
- If your carrier quotes a divisor that is not listed, use Custom Factor instead of the nearest preset.
How to use the chargeable weight calculator
Pick the tab that matches your shipment: Air Freight, Express Delivery or Ocean Freight. Each tab is pre-filled with its own worked example, so you can press Calculate straight away to see the full output, then replace the figures with yours. Enter the outer dimensions of the package in centimetres (including all packaging) and the actual scale weight in kilograms. Then choose the dimensional factor: the presets cover standard and priority air, DHL, FedEx, TNT and UPS, and FCL/LCL ocean services. If your carrier quotes a different divisor, choose Custom Factor and enter it.
Press Calculate to see the volumetric weight, the chargeable weight your carrier will bill, the total package volume and a weight-category verdict. If you need the volume figure on its own for other quotes, the box volume calculator converts package dimensions to volume units quickly, and once you know the billable weight, the carriage cost calculator helps price the transport itself.
The formula behind the calculator
Every mode runs the same three steps. Only the divisor changes.
The standard factor for air cargo is 6000 under IATA rules, the 1:6 density ratio the Maersk air cargo chargeable weight guide also sets out, while express couriers commonly use 5000 (DHL, FedEx, TNT presets here) or 4000 (the UPS preset). Ocean LCL is typically billed per cubic metre at a 1:1000 ratio, which this tool models with the 1000 divisor. Always confirm the divisor with your carrier before booking, because the same box can bill 20% higher under a 5000 divisor than under 6000.
Worked examples in all three modes
Each tab is pre-filled with one of these cases, and every figure below is what the calculator returns for it.
| Mode and factor | Shipment | Volumetric | Chargeable | Verdict |
|---|---|---|---|---|
| Air, standard 6000 | 120 × 80 × 50 cm, 90 kg | 80.0 kg | 90.0 kg | Balanced |
| Express, DHL/FedEx 5000 | 60 × 40 × 35 cm, 12 kg | 16.8 kg | 16.8 kg | Light/Bulky |
| Ocean, FCL/LCL 1000 | 120 × 80 × 50 cm, 90 kg | 480.0 kg | 480.0 kg | Very Light |
The express case is the expensive lesson. The box weighs 12 kg on the scale, but at a 5000 divisor its 84,000 cm3 becomes 16.8 kg, so you pay for 4.8 kg of air. Switching that same box to the UPS preset (4000) pushes the volumetric weight to 21.0 kg. Repacking it a few centimetres smaller on each side is usually worth more than negotiating the rate per kilo. For sea shipments that fill a vehicle or container rather than a courier network, the barge rate calculator covers the per-ton pricing used on bulk water routes.
What your results mean
The weight category is the tool's verdict on your shipment, based on the ratio of volumetric weight to actual weight. Dense/Heavy (ratio 0.5 or below) means the scale weight wins and your packaging is efficient. Balanced (above 0.5 up to 1.0) means you are near the tipping point, and a small packaging change decides which weight bills. Light/Bulky (above 1.0 up to 2.0) means you are paying volumetric rates and smaller packaging would cut the bill. Very Light (above 2.0) means most of the charge is for empty space.
The plain-English summary under the results can be copied or shared straight into a freight quote request: it states the mode, the package size band, the factor used, and which weight the charge is based on, so a forwarder can reproduce your figure without a follow-up email.
What other chargeable weight calculators miss
The dedicated calculators ranking for this query are mostly single-mode tools with a hardcoded divisor. The most prominent one fixes the divisor at 5000 and calls it the air-freight standard, then contradicts itself in its own FAQ by assigning 6000 to express, while the IATA air-cargo standard is 6000. None of them cover ocean freight, none let you enter a custom carrier factor, and none give you a copyable summary.
This tool defaults each mode to the correct industry factor, adds DHL/FedEx/UPS/TNT presets plus custom entry, includes an ocean tab, classifies the shipment density, and puts copy and share buttons on the results. One honest limit: it works one package at a time, so for a multi-carton consignment, run each carton size and add the chargeable weights together, applying the same factor throughout.
Frequently Asked Questions
Because carriers sell space as well as lift. A bulky, light package fills aircraft or vehicle capacity that could have carried denser cargo, so you are billed for the space through volumetric weight. Only the greater of the two weights is charged, never both added together.
Use 6000 for standard air freight, the IATA-based industry standard. Use 5000 for most express couriers, including the DHL, FedEx, and TNT presets in this tool, and 4000 for the UPS preset. Ocean services in this tool use 1000 for FCL and LCL, 3000 for ocean express, and 500 for break bulk. When in doubt, ask your carrier for its dimensional factor and enter it with the Custom Factor option.
Most round up to the next half kilogram or whole kilogram for billing, so a calculated 16.8 kg may bill as 17 kg. This calculator shows the exact unrounded figure; round up yourself when comparing quotes, and remember that minimum charges can also apply to very small shipments.
Yes. Always measure the outermost dimensions of the packed, sealed shipment, including pallets, corner boards, and any bulging tape, not the product inside. Carriers re-measure at their terminals and will rebill you if your figures are short.
Ocean LCL freight is usually billed per revenue ton, the greater of the volume in cubic metres and the weight in metric tonnes, which is a 1 to 1000 relationship. This tool models that as a divisor of 1000, so a 480,000 cm3 shipment gets a volumetric weight of 480 kg. A full container is priced per box instead, so for FCL the figure is a capacity check rather than the billing basis.
It compares volumetric weight with actual weight. Dense/Heavy (ratio 0.5 or less) means the scale weight wins and your packaging is efficient. Balanced (above 0.5 up to 1.0) means you are near the tipping point. Light/Bulky (above 1.0 up to 2.0) means volumetric weight applies and smaller packaging would cut the bill. Very Light (above 2.0) means most of the charge is for empty space.
Yes. Every mode has a Custom Factor option. Pick it, type the divisor your carrier or forwarder quoted, and the calculator uses it for the volumetric weight, the chargeable weight, and the written summary.
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References
- Maersk, "Air cargo chargeable weight: a complete guide" - the higher of actual and volumetric weight, and the IATA divisor of 6000, explained by a carrier. Maersk: Air cargo chargeable weight guide. Accessed October 2026.
- Allwin Logistic, "Airfreight chargeable weight: how to calculate it" - the IATA 1:6 density reference point and worked air examples with divisor 6000. Allwin Logistic: Airfreight chargeable weight. Accessed October 2026.
- TGL Group, "Light boxes, heavy bill: air freight chargeable weight" - outer-dimension measuring rules, courier divisor 5000, and carrier rounding practice. TGL Group: Air freight chargeable weight. Accessed October 2026.
- DFH Logistics, "Chargeable weight vs gross weight" - the divisor table for air (6000), express (5000), and sea (1000) used to cross-check the presets in this tool. DFH Logistics: Chargeable weight vs volume weight. Accessed October 2026.
- FreightAmigo, "Master air and sea chargeable weight formulas" - volumetric formulas for air at 6000 and the rounding conventions carriers apply. FreightAmigo: Air and sea chargeable weight formulas. Accessed October 2026.