Four small calculators built on MambaBuy's published numbers
Shipping by line, volumetric weight, the warehouse deadlines and the payment fee. Each one runs in your browser on figures MambaBuy published, with the date we read them.
Shipping estimator by line
How to use the calculator: pick a destination, enter the parcel weight and, if you know it, the carton size. It returns every line MambaBuy offered for that country on 21 October 2026, cheapest first, with the billed weight after rounding and volumetric checks. The arithmetic follows each line's tariff tiers; for a one-kilogram parcel its totals match MambaBuy's own estimator exactly. Above that weight it is our reading of the same tiers, so treat it as a planning figure.
Volumetric weight check
Enter a carton's three sides and its actual weight to see the volumetric weight under each divisor MambaBuy's help mentions (5000, 6000, 7000 and 8000) and which number a carrier would charge. It is the quickest way to see whether removing shoe boxes or folding a puffer into a vacuum bag is worth asking for.
Stored-date deadline finder
Pick the date an item turned Stored. The clock returns the last day for a return or exchange request (five days, which MambaBuy counts as 120 hours, so act a day early if the item arrived late in the evening China time), the end of free storage at ninety days, and the 180-day abandonment point.
Yuan, display currency and payment fee
Enter a balance you need in yuan, choose a currency and a payment method. The converter uses the display rates MambaBuy served on 21 October 2026 and the fees on its top-up page: 5% plus $0.30 for cards, 3.7% plus $0.30 for PayPal, nothing from MambaBuy for bank transfer. Your bank or PayPal may apply its own conversion on top.
MambaBuy's own image search
One tool lives on MambaBuy rather than here: search by image. Click the camera icon in the MambaBuy search bar, upload a picture, and it returns matching marketplace listings, which MambaBuy demonstrates with a pair of wireless earbuds. It is the fastest route when a photo is all you have; compare the results' prices and shop ratings before adding one to the cart.
