AllChinaBuy Shipping Expert vs Shipping Calculator – Why the Weights Differ

Section 01

Start with the document that produced the number

If an AllChinaBuy email gives one weight and a parcel screen gives another, put the two records side by side before deciding what to pay. Write down the date, reference, unit and exact label beside each number. A weight displayed next to one pair of shoes can describe the warehouse item. A number beside an international route may describe the entire carton or the weight used to price its journey. Both figures can be accurate for their own purpose and still differ substantially.

The shipping calculator helps you compare what might happen under different packing assumptions. A Shipping Expert plan describes a particular selection of goods and the packing requested for them. A freight deposit records an amount requested or paid. Each answers a different question. As checked on November 3, 2026, the official homepage displayed a maintenance notice and referred order enquiries to support. Use the historical form to interpret saved instructions. For an existing parcel, use its own dated records to establish what actually happened.

Section 02

Use the calculator to change one assumption at a time

For a comparison you can reproduce, record the sending warehouse, destination, item category, route, estimated packed weight and outside dimensions in their stated units. If you only have the seller’s item weight, mark it as a guess for the packed parcel. Even when you know what the shoes weigh, you do not yet know the space that a protected pair will occupy. Record the date alongside the inputs so that another person can repeat the comparison without guessing what you entered.

Make two copies of the same scenario. In one, keep the retail box. In the other, enter a plausible smaller outer carton and the corresponding estimated scale weight. Keep the route and the other goods unchanged. Changing the destination, dividing the contents between parcels or switching lines at the same time makes it impossible to tell which change explains the result. Save both scenarios, including any route that disappears for the larger box. A missing result belongs in a different column from a quoted price of zero.

Section 03

Read the historical Shipping Expert plan against your request

The historical Chinese application form asked buyers to specify the goods, whether splitting was acceptable, whether packaging should be kept, and which shipping priority mattered. It offered a choice between authorising a deduction under the proposed plan and reviewing the plan before paying. The form also distinguished the service fee from packing and handling charges. If you have a copy of the request, read the selections you actually made. A general description of the service cannot reconstruct your original choices.

Consider an order containing two pairs of shoes. An instruction to remove “the box” leaves the packer to guess whether it means one retail box, both retail boxes, or the outer shipping carton. Identify the warehouse item by its reference, specify the retail box to remove, and describe the protection to retain. Read the reply for the same item and the resulting outer measurements. If the reply only acknowledges receiving your instructions, keep the change marked as requested until a packing record confirms its completion.

A split-parcel proposal needs another check. If the plan assigns the shoes to parcel A and a jacket to parcel B, record two sets of outside dimensions and two weights. Compare the total of the two proposed freight amounts with the single-carton scenario. Combining the dimensions into one imaginary box or adding one minimum charge to the weight of both packages would answer a different question. Also check where any protective packaging has gone. A pair that needs a rigid shell may still set the size of parcel A even after its retail box is removed. Before comparing prices, check off every item against its warehouse reference once. An apparently cheaper proposal sometimes covers fewer goods in the document you are reading. A second parcel with a separate reference may account for the rest.

Section 04

Follow the shoebox through a worked weight comparison

Suppose a hypothetical route uses the greater of packed scale weight and volumetric weight, before any rounding, and uses a divisor of 5,000 with centimetres and kilograms. A sealed box measures 40 × 30 × 25 cm and weighs 3.2 kg. Its volume is 30,000 cubic centimetres. Dividing by 5,000 gives 6.0 kg volumetric weight. The comparison therefore uses 6.0 kg even though the scale reads 3.2 kg. This number describes the space occupied under the assumed rule.

Now suppose removing one retail shoebox lets the same items fit into a carton measuring 40 × 30 × 18 cm and weighing 3.0 kg after repacking. Volume falls to 21,600 cubic centimetres and volumetric weight to 4.32 kg. Under the same rule the relevant comparison changes from 6.0 to 4.32 kg, whereas the scale weight only changes by 0.2 kg. If the outer carton stayed the original size, removing the same material would leave the calculated volume weight at 6.0 kg.

Before attaching money to the difference, check the actual route’s divisor, rounding steps, minimum charge and eligibility. Keep millimetres out of centimetre fields and convert grams to kilograms only when the input requires it. The example gives a difference of 1.68 kg in unrounded chargeable weight. It gives no carrier price and no prediction that another parcel will qualify for a cheaper line. If the shoes need reinforcement, measure the protective outer carton with that reinforcement in place.

Section 05

Reconcile the freight deposit separately from the parcel weight

For a saved order, give each money entry its own line. Start with the proposed freight, then the amount requested as a deposit, then the debit actually recorded. Keep any packing fee or expert service charge separate when the record identifies it. Copy the currency and transaction date exactly. A screen asking for a deposit does not establish that a payment went through. Use a receipt or a posted balance transaction for that step and keep its parcel reference beside the amount.

Later, compare the settled freight and any separately posted adjustment against the same parcel. As a bookkeeping example, if a receipt shows 100 units of freight deposit and a statement later identifies 88 in final freight, the numerical difference is 12. The records explain where those 12 went only if they show a credit, a separate charge or another identified entry. Check whether the entry is pending or posted and whether it belongs to the same currency and shipment. A lower packing weight by itself proves none of those payment outcomes.

Section 06

Resolve the disagreement with one specific question

In August 2025 a buyer described asking for one shoebox to be removed. The weight in an email appeared to reflect the change, while the number on the website looked higher. The public discussion records the buyer’s question, but it contains no final carrier invoice for that parcel. A useful first check in a similar case is whether each document identifies the same parcel, the same items and the same stage of packing. An earlier estimate can remain in a screenshot long after a newer plan was issued.

If the references match, ask which record contains the final packed scale weight, outside dimensions and route billing rule. A concise enquiry can say, “For parcel [reference], the plan dated [date] shows [weight] after removing the retail box for [item]. The parcel screen dated [date] shows [weight]. Which measurements and billing rule apply to this deposit?” Include cropped evidence with the unit and date legible. Keep your plan, receipt and carrier record together so the next reply can answer the one remaining question.