By the Waymore Shipping Operations Team | Last updated: October 2026 | 5 min read

How Much Cargo Fits in a 40ft Container? Quick Estimation

A 40ft high-cube container holds 76.4 CBM of space, and in practice you can load 60–68 CBM of boxed cargo — roughly 500 to 1,700+ cartons depending on box size. Payload caps around 26–28 tons.

The 3-Step Estimation Method

1. Compute one carton's volume: length × width × height in meters. A 50×40×40 cm box = 0.08 CBM.
2. Divide usable volume by carton volume: 68 ÷ 0.08 = 850 cartons theoretical maximum.
3. Reduce by 5–15% for loading gaps, dunnage and stacking limits: plan on 770–810 cartons. When in doubt, round down — an under-filled box sails on time; an over-stuffed one doesn't.

Use 65 CBM for mixed pallets and slightly irregular cartons, 68 for uniform boxes stacked by machine. Carrier equipment specs — for example those published by Maersk — list the nominal internal dimensions behind these numbers. Whatever your carton mix, send us the packing list before booking: five minutes of loading-plan math at our warehouse reliably beats discovering a two-carton overflow on loading day.

Carton Counts by Common Box Size

Don't Forget the Weight Ceiling

Light cargo fills a 40HC by volume; dense cargo fills it by weight. The container's payload limit is around 26,500–28,000 kg, but road regulations usually bind first — many destination markets cap a loaded 40ft truck near 24–26 tons of cargo. Cargo at 400 kg/CBM hits the weight limit at just 60–65 CBM, so heavy shipments like that often belong in a 20GP instead. If your numbers confuse you, our CBM and chargeable weight formula page has the full worked math.

When a Full Container Beats LCL

The rough break-even sits at 50–55 CBM: below that, LCL usually costs less; above it, the 40HC wins and also skips LCL destination CFS fees and handling delays. Our FCL vs LCL comparison includes a worked cost example, and our operations team runs both calculations on every quote above 40 CBM so you see the cheaper structure with real numbers attached.

A quick case from our files: an Australian buyer had shipped 46 CBM of home storage goods by LCL for months. When their order grew to 61 CBM, we quoted both structures — LCL priced at $2,340 all-in, a 40HC at $1,780 plus modest destination fees, a saving of roughly $500 per shipment with a week less handling time at each end. The customer switched permanently and now times orders to fill the box. Run that comparison on your own volumes once a quarter; as your purchasing grows, the break-even arrives faster than most importers expect.

Pallet Math for the Same Box

If your cargo ships on pallets instead of loose cartons, the numbers change. A standard 120×100 cm pallet uses the container floor efficiently: 18–20 pallets fit single-tier in a 40HC, and with stackable cartons two tiers take you to 30–36 pallets. Euro pallets (120×80 cm) lay differently — around 23–25 on the floor. Stackability is the swing factor: unstackable pallets cap you at floor count and waste half the cube, which is why we ask "can pallet B sit on pallet A?" before quoting any palletized 40HC load. Where stacking is impossible, sometimes shipping loose-loaded cartons and palletizing at destination uses the container better and cuts destination handling costs at the same time.

Frequently Asked Questions

How many CBM fit in a 40ft high cube container?

A 40HC offers 76.4 CBM of internal volume, but practical loading is usually 60–68 CBM after allowing for carton irregularity, air gaps and lashing. For a standard 40GP the practical figure is around 55–58 CBM.

How many cartons fit in a 40ft container?

It depends on carton size: 40×40×30 cm cartons fit roughly 1,600–1,750 pieces, 50×40×40 cm cartons around 950–1,050, and 60×50×50 cm cartons about 480–540. Divide 68 CBM by your carton volume, then reduce by 5–15% for gaps.

What is the weight limit for a 40ft container?

The maximum payload of a 40HC is about 26,500–28,000 kg depending on tare weight, but road weight limits in both China and destination countries often cap actual loading lower, around 24–26 tons of cargo for a full truck move.

Is it cheaper to fill one 40ft container or ship LCL?

Once your cargo reaches about 50–55 CBM, a 40HC is usually cheaper than LCL on the same lane, and it avoids LCL handling fees and destination CFS charges. Below that volume, compare real quotes on both structures.