Chargeable Weight vs Actual Weight vs Dead Weight: The Terms, Settled

Three words appear on every courier invoice and are used loosely enough that sellers argue about bills that are correct. Dead weight, volumetric weight and chargeable weight each mean one specific thing. Here they are, with the arithmetic, the places each one shows up, and the mistakes that come from mixing them.

Dead weight

Also called actual weight or gross weight. It is what the sealed parcel weighs on a scale: product plus packaging plus label, in kilograms. It is a physical measurement and there is only one right value for a given parcel.

Where it appears: the weight field at booking, the hub’s scale reading, the “actual” column on a discrepancy notice.

Volumetric weight

Also called dimensional weight or DIM weight. It is derived from the parcel’s outer dimensions:

Volumetric weight = L x W x H (cm) / 5000

It is not a measurement of mass. It is the carrier expressing “this parcel takes up the space a parcel of this weight would”. A 40 x 30 x 20 cm box is 4.8 kg volumetric whether it contains bricks or feathers.

Where it appears: computed by the platform from the dimensions you enter, and by the hub from the dimensions it measures.

Chargeable weight

Also called billable weight. It is the higher of the two:

Chargeable weight = max(dead weight, volumetric weight)

This is the only one of the three that appears in the price. The rate card is applied to the chargeable weight’s slab. Nothing else.

One parcel, three numbers

A 40 x 30 x 20 cm box holding 2.4 kg of goods.

	Value
Dead weight	2.40 kg
Volumetric weight	40 x 30 x 20 / 5000 = 4.80 kg
Chargeable weight	4.80 kg

The parcel weighs 2.4 kg. You pay for 4.8 kg. Both statements are true, and neither is a mistake.

Now the same 2.4 kg of goods in a 32 x 26 x 14 cm box: volumetric 2.33 kg, chargeable 2.40 kg. Dead weight wins, and the parcel is billed at what it weighs. The box was the only thing that changed.

Where the confusion costs money

In a weight dispute. The comparison that matters is the hub’s chargeable weight against your declared chargeable weight. On the first parcel above, a hub reading of 4.6 kg on the scale is irrelevant: your parcel was already billed at 4.8 kg volumetric, and 4.6 kg dead weight does not exceed it. A seller who sees “declared 2.4, measured 4.6” and panics is comparing dead weight to dead weight, which is not what is billed. Courier Uncle’s discrepancy record shows the chargeable figures side by side for exactly this reason.

In the booking form. The weight field wants dead weight. Entering the volumetric figure there is wrong in both directions: if it is lower than the real dead weight the hub will catch it, and if it is higher you have over-declared. Enter the dead weight and the dimensions; the platform derives the rest.

In the rate calculator. Quoting with the dead weight and no dimensions gives you a price for a dense parcel. If yours is not dense, the hub’s measurement will produce a higher chargeable weight and a discrepancy. Always quote with dimensions.

In the free-shipping threshold and the benchmark. When you compute average shipping cost, the weight that drove it is chargeable weight. Averaging dead weight tells you about your products; averaging chargeable weight tells you about your packaging.

A quick reference

Term	Also called	How obtained	Used for
Dead weight	Actual, gross	Scale	Declaration; one input to chargeable
Volumetric weight	Dimensional, DIM	L x W x H / 5000	The other input to chargeable
Chargeable weight	Billable	max of the two	The slab, and therefore the price

Frequently asked questions

Is chargeable weight always the higher of the two?

Yes, for standard parcel services. That is its definition. There is no service that bills the lower.

Is dead weight the same as actual weight?

Yes. Different carriers use different words for the physical weight of the sealed parcel.

Which weight do I enter when booking?

The dead weight in the weight field, and the real outer dimensions in the dimension fields. The platform computes volumetric and chargeable weight from those.

Does the slab apply to dead weight or chargeable weight?

Chargeable. A 0.4 kg parcel in a box that computes to 1.2 kg volumetric is in the 1 to 2 kg slab.

Why does my invoice show a weight higher than my parcel?

Because the invoice shows chargeable weight, and on a bulky parcel the volumetric figure is higher than the scale reading. The box decided the slab.

Can chargeable weight be lower than dead weight?

Never. It is the maximum of the two, so it is at least the dead weight.

Ship smarter with Courier Uncle

The rate calculator shows all three figures for any parcel, so you know before booking which one is setting the price. See it on your next order.