Prepare the numbers. Keep the evidence.

Read a product link.

Identify a supported marketplace URL and extract its source ID. This is a local format check; it does not open or verify the seller page.

Supported: full 1688 offer URLs, Taobao/Tmall item URLs, Weidian item URLs and Yupoo album URLs. Short links need expanding at their original source.

Compare parcel weight.

Enter the outside dimensions after packing, the actual packed weight and the divisor specified by your chosen route. Some routes charge actual weight only; others compare actual and volumetric weight.

Formula: length × width × height ÷ route divisor. The result here is unrounded. Minimum charges and billing increments are separate route rules.

Build a total-cost scenario.

Convert Chinese purchase costs using your own exchange rate, then add freight, tax and other costs in the destination currency. Include payment spreads in the rate or other costs, without counting them twice.

For a sample or wholesale decision, compare the cost per usable unit. Enter a realistic usable quantity; this is your scenario, not a quality-loss prediction.

No tax rate, exchange rate, freight price or service charge is supplied automatically. Confirm actual amounts with the relevant provider.

Keep a purchase & QC record.

Record the source, expected option, actual measurements and open issues. Store the actual order evidence and photos securely yourself; this form only records text notes.

Notes save in this browser. Download a copy before clearing browser storage. Avoid passwords, payment details and sensitive personal information.