Freight moves per container, so the pieces inside one divide your landed cost. Two bottles of the same capacity can differ by thousands of pieces per box, because a pallet layer is decided by footprint and a stack is decided by height.
Work Out Your Own Container Count
A 76 mm bottle 30 cm tall stacks 7 layers, so a 40HC holds about 33,075 pieces across 21 pallets — 16.5 tonnes at 500 g each, inside the 28-tonne payload.
| Bottle | Diameter | Height | Layers | Pieces | Weight |
|---|---|---|---|---|---|
| 12 oz (355 ml) beer bottle | 61 mm | 23 cm | 10 | 75,810 | 13.6 t |
| 500 ml (17 oz) juice bottle | 68 mm | 21.5 cm | 10 | 60,690 | 18.2 t |
| 750 ml (25 oz) wine bottle | 76 mm | 30 cm | 7 | 33,075 | 16.5 t |
| 750 ml (25 oz) spirits, heavy | 84 mm | 30.5 cm | 7 | 25,872 | 18.1 t |
| 1 L (34 oz) storage jar | 100 mm | 20 cm | 11 | 29,337 | 17.6 t |
| 250 ml (8 oz) honey jar | 76 mm | 9.5 cm | 24 | 113,400 | 24.9 t |
Counts are the volumetric maximum for round bottles stacked on 21 pallets in a 40HC or 10 in a 20GP, before cartons, dividers and shrink wrap take their share. Square and irregular shapes load fewer. Heavy glass reaches the 28-tonne payload before it fills the box, and the figure then drops to what the tonnes allow. Your quotation carries the loading plan for the cartons you actually order.
Why Diameter Beats Capacity
A pallet layer is a floor-area problem. Your bottle's diameter sets how many circles fit on a 1200 by 1000 mm pallet, and capacity tells you nothing about that on its own: a short wide 500 ml (17 oz) bottle and a tall narrow one hold the same product and load differently on every layer.
Height then sets the layers. A container stacks to a fixed height, so a bottle 2 cm shorter can win a whole extra layer across every pallet in the box. A redesign pays for itself there, and that check belongs before your mould is cut.
Where the Bottles-per-Container Count Comes From
Three numbers multiply. Bottles per layer come from your diameter against the pallet footprint. Layers come from the stack height a container allows divided by your bottle height. Pallets come from the container: 21 in a 40HC, 10 in a 20GP.
The calculator carries the loading table our own warehouse team plans from, covering diameters from 40 mm to 129 mm across the 14 lines SGSBOTTLE runs in Shandong and Xuzhou. A bottle outside that range needs a drawing and a sales engineer rather than a lookup.
When Container Payload Decides the Count
A 40-foot high cube carries roughly 28 tonnes. Light glass never approaches it: 33,000 bottles at 500 g put 16.5 tonnes in the box and leave a third of the payload unused.
Heavy glass is a different problem. A 600 g jar in a shape that loads 113,000 pieces by volume would weigh 68 tonnes, so the payload caps your order at about 46,000 and the extra space earns you nothing. The calculator switches to the weight answer as soon as that happens, because a plan that cannot legally ship is not a plan.
What the Number Does Not Include
The count is a volumetric ceiling for round bottles. Cartons, dividers, shrink wrap and the pallet itself all take their share, so a cartoned load lands under it rather than on it.
Square and irregular shapes load fewer than a round bottle of the same width, since the packing that suits circles wastes space on corners. SGSBOTTLE has loaded to 40+ countries since 2013, and your quotation carries the plan for the cartons you actually order — that figure is the one to put in your costing.
What Goes on Your Enquiry
Your bottle diameter in millimetres and its height in centimetres, the gram weight if your glass is heavy, and the quantity you are planning. A drawing answers all three at once.
Tell us your destination port as well: a plan that fills a 40HC on paper still has to satisfy the road leg at the far end, and some markets cap axle weights under what the box allows.