Actual weight vs volumetric

They charge whichever number is bigger.

TypeWhat it isUsually bites you when
ActualWhat the scale saysHeavy stuff: metal, liquids, thick soles
VolumetricBox size (L × W × H ÷ divisor)Big fluffy stuff, shoeboxes, bulky packaging

Example: A 40×30×20 cm box might weigh 500g on a scale but get billed as (40×30×20)÷8000 = 3kg because of the size.

Shipping line types

Postal (EMS, EUB)

Not tax-free. Tight divisor (5000/6000), you pay per gram. Only worth it on small, heavy parcels.

Tax-free and express

Triangle shipping to dodge customs. Usually 8000 divisor; express lines use 5000. Priced per gram.

Batteries and liquids Need special lines. Ship that stuff separately so it doesn't drag the rest of your haul onto a pricey route.

Compare options on gtbuy.com/estimation before you pay.

Rehearsal

They pack your stuff into the real box and tell you the exact weight and size before you pay shipping.

Heads up After rehearsal you can't change items or lines. Cancel the parcel and start over if you need to.

Worth it when

You're combining a bunch of items or the estimate looks way off. Costs about $3.

Skip when

One light item and the estimate already looks right. Still leave 500 to 800 g for the cardboard.

Not sure on size? Rehearse first, plug the real weight and dimensions into the estimator, then pick the line that comes out cheapest.

Packaging options

Strip the bulk

Tick Remove Shoebox or Remove Original Packing. Want the box? Use Fold Shoebox.

Vacuum seal

Worth it on clothes. A puffer goes from balloon to flat slab.

Customs and insurance

Declaration

GTBuy fills in the declared value based on the carrier. You don't have to guess.

Insurance

About 3% of item value. Cheap for when a parcel goes missing or sits in customs forever.