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Whatnot shipping calculator

Whatnot prices Ground Advantage in bands, not by the ounce. Enter a weight to see what the label costs, how much more fits for free, and where the next jump is.

The whole pounds on the label.

The ounces on top of those pounds.

Where it is going

Box size, optional

Only needed to check the one cubic foot line. Leave it empty if you have not picked a box.

Ground Advantage label
$7.75
Shipment weight

A label prints this as 2 lb 12 oz

44 oz
Weight band

Whatnot prices Ground Advantage in bands, not by the ounce

1 to 5 lbs

Another 2 lb 4 oz costs nothing. Anything from 1 lb to 5 lbs is the same $7.75 label, whatever the exact weight and wherever in the contiguous US it goes, so the next item into this box ships free until you pass 5 lbs.

The whole card

Up to 4 oz
$4.47
Over 4 oz, up to 8 oz
$4.85
Over 8 oz, up to 12 oz
$5.25
Over 12 oz, under 1 lb
$6.75
1 to 5 lbs
$7.75
Over 5 lbs
By weight and distance

How Whatnot prices a label

USPS Ground Advantage is the default service for most domestic packages on Whatnot, and Whatnot prices it in bands rather than by the ounce. There are three regimes and only the middle one is flat. Under a pound, the price steps by weight in four bands and distance does not matter. From 1 lb to 5 lbs it is one flat $7.75, whatever the shipment weighs and wherever in the contiguous US it goes. Over 5 lbs, weight and the distance travelled in USPS zones both count and Whatnot publishes no table, so the only honest answer there is the one on your label.

US domestic only. Whatnot-negotiated rates: the USPS label price plus a small operational fee. From Whatnot's seller and buyer shipping guides, the later of them dated 1 August 2026 and both read 16 September 2026. Rates change; check Seller Hub before pricing a show around one.
Package weightLabel
Up to 4 oz$4.47
Over 4 oz, up to 8 oz$4.85
Over 8 oz, up to 12 oz$5.25
Over 12 oz, under 1 lb$6.75
1 to 5 lbs$7.75
Over 5 lbsBy weight and distance

The steepest step on the card is the one out of the 8 to 12 oz band: one ounce over 12 adds $1.50, which is more than the whole climb from 4 oz to 12 oz. If a shipment is sitting just under a boundary, that is where packing lighter actually pays.

What this tool will not tell you

Three things, all deliberately. It does not price a shipment over 5 lbs, because Whatnot prices those by weight and distance together and publishes no rates. It does not price Alaska, Hawaii, US territories or military addresses, which use standard USPS commercial pricing rather than Whatnot's. And it does not price a box bigger than one cubic foot with any confidence: past that size dimensional weight can charge for the space rather than the contents, so a large light box can cost more than a small heavy one. Enter your box dimensions and it will tell you which side of that line you are on.

Two other services sit outside this table. Eligible cards can go in a plain white envelope for far less. Flat Rate runs $12.99 per shipment on eligible live-show orders over 1 lb. It cannot beat the flat band, so it only matters above 5 lbs, which is exactly where Whatnot publishes no Ground Advantage rate to compare it against. What Flat Rate costs, and when it changes has the eligibility rules, the comparison and the expiry date on that price.

Why is Whatnot shipping so expensive?

Usually it is not the rate, it is the band. A shipment an ounce over a boundary pays the whole of the next band, and the two boundaries under a pound are the expensive ones. The other half of the answer is that shipping only feels free while the buyer is paying it: the moment a discount, a cap or a giveaway moves it to your side, the same label becomes a cost against the show.

Why did four items only cost $7.75 to ship?

Because anything from 1 lb to 5 lbs is one flat price on Whatnot's Ground Advantage rates: $7.75, whatever the exact weight and wherever in the contiguous US it goes. A bundle weighing 1 lb 1 oz and a bundle weighing 4 lb 15 oz cost the same. That is why adding another item to a bundle already inside the band usually adds nothing.

My label says 2 lbs but the app says 44 oz. Which is right?

Both, and they are the same weight. 44 oz is 2 lb 12 oz, because a pound is 16 ounces and 2 times 16 is 32, leaving 12. Whatnot's shipment details show the total in ounces while the printed label shows pounds and ounces, so the two look like they disagree when they do not.

Why did adding two ounces cost me more than adding four pounds?

Because under a pound the price steps in bands and above a pound it does not. Two ounces can carry a package over a boundary: 12 oz costs $5.25 and 13 oz costs $6.75, so one ounce there adds $1.50. Once a shipment reaches 1 lb it is in the flat band, where anything up to 5 lbs is the same $7.75, so four more pounds change nothing.

Who actually pays it

This is the label cost, not your bill. On Whatnot the buyer pays shipping by default, and it lands on you when you have set free or discounted shipping, when a buyer cap is lower than the real cost, on giveaways, on carrier adjustments, and when a bundle splits into more than one package. Who pays shipping on Whatnot works through all six and how to tell which one hit you. To put a label cost into a whole show, the profit calculator takes seller-paid shipping as an input, and the fee calculator does the same for a single sale.

Whichever way it falls, the postage you paid is a real cost against the show, and it is one of the costs that stand between a big sales week and an actual net profit. BreakCount counts it for you: import your Weekly Order Report, add what each purchase lot cost, and every show gets a net profit with the shipping already subtracted.

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