CBM Calculator for sea freight and container loading
Work out the cubic metres of your boxes, pallets or furniture, see how a shared container would bill it and how much of a 20 ft or 40 ft container you would fill.
Multiply the length, width and height of each item in metres to get its volume in cubic metres (CBM). If you measure in centimetres, multiply the three sides and divide by 1,000,000. Then multiply by the number of identical items and add everything up. For example, a 120 x 100 x 150 cm pallet is 1.2 x 1.0 x 1.5 = 1.8 CBM, so two pallets are 3.6 CBM.
Calculator
Calculate Your Shipment Volume in CBM
Add each item, box or pallet. The calculator totals the cubic metres, shows how sea LCL would bill it and how much of a container it fills.
CBM stands for cubic metre, the space taken by a cube one metre on each side. It is the unit used to price shared container shipping (LCL), to plan container loading and to estimate house moves.
Shared container sea freight is billed on weight or measure (W/M). The carrier compares the volume in CBM with the weight in tonnes and charges whichever is higher. One CBM is treated as equal to 1,000 kg, so most household goods and general cargo are billed on volume.
Full containers (FCL) are priced per container, not per CBM. Knowing your total volume tells you whether a 20 ft or 40 ft box fits, and whether a full container would cost less than sharing. For air freight, use the volumetric weight calculator instead.
Worked example
Two pallets and ten cartons going by sea.
2 pallets of 120 x 100 x 150 cm = 3.6 CBM
10 cartons of 60 x 50 x 50 cm = 1.5 CBM
Total volume 5.1 CBM, total weight 1,000 kg (1 tonne)
LCL bills the higher: 5.1 W/M, because volume beats weight
Under 13 CBM, a shared container is usually cheapest
Internal dimensions are approximate and vary slightly between shipping lines.
Standard shipping container sizes and capacity
Container
Inside dimensions (L x W x H)
Total volume
Practical load
Typical use
20 ft standard
5.90 x 2.35 x 2.39 m
About 33 CBM
25 to 28 CBM
One to two bedroom home, a car, 10 standard pallets
40 ft standard
12.03 x 2.35 x 2.39 m
About 67 CBM
55 to 58 CBM
Three to four bedroom home, larger commercial loads
40 ft high cube
12.03 x 2.35 x 2.69 m
About 76 CBM
65 to 68 CBM
Villa moves, light and bulky cargo
Practical load allows for gaps between items and packing. Weight limits also apply, so very heavy cargo can fill a container by weight before volume.
House moves
How Many CBM Is My Home? Typical Volumes
Rough guides to start planning. A free survey of your home gives the real figure.
Typical household move volumes in CBM
Home size
Typical volume
Usual option
Studio or a few rooms of belongings
5 to 12 CBM
Shared container (LCL)
One bedroom apartment
15 to 20 CBM
LCL or 20 ft container
Two bedroom apartment
25 to 35 CBM
20 ft or 40 ft container
Three bedroom apartment or townhouse
40 to 55 CBM
40 ft container
Four to five bedroom villa
60 CBM and above
40 ft high cube, sometimes two containers
Volumes vary a lot with how much furniture you keep. Common items: three-seat sofa about 2 CBM, double bed about 1.5 CBM, large fridge about 1 CBM, washing machine about 0.5 CBM.
CBM means cubic metre. It is the volume of a space 1 metre long, 1 metre wide and 1 metre high, and it is the standard unit for pricing shared container sea freight and planning container loads.
How do I calculate CBM from centimetres?
Multiply length x width x height in centimetres and divide by 1,000,000. A 60 x 50 x 40 cm box is 120,000 cubic cm, which is 0.12 CBM.
How many cubic feet are in one CBM?
One CBM equals about 35.3 cubic feet.
What does W/M mean in sea freight?
Weight or measure. The shared container rate applies to whichever is greater, the volume in CBM or the weight in tonnes, with 1 CBM treated as 1,000 kg.
How many CBM fit in a 20 ft container?
A 20 ft container holds about 33 CBM in total, but 25 to 28 CBM is a realistic load once you allow for gaps and packing.
When is a full container cheaper than LCL?
It depends on the route and the season, but at roughly 13 to 15 CBM a 20 ft container often costs about the same as LCL. Above that, a full container is usually better value and faster to clear.
How many CBM is a one bedroom apartment?
Usually 15 to 20 CBM, depending on how much furniture you take. A survey of your home gives a reliable figure.
Is the CBM figure my final price?
No. Volume is one input. The price also depends on the route, port charges, customs, insurance and delivery at destination. Send the result to us for a full door-to-door quote.
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