Free Shipping & Freight Tool Shipping & Packaging

Carton Volume Calculator

Calculate carton CBM and total shipment volume before requesting freight rates or planning container space.

Enter the external length, width and height of your shipping carton together with the number of cartons to calculate CBM per carton and total shipment volume.

This calculator is designed for importers, exporters, sourcing companies, wholesale buyers, manufacturers and logistics teams planning international home-textile shipments.

Free to use Instant estimate Built for sourcing & trade

CBM Carton volume

m³ Shipment volume

B2B Freight planning tool

Carton Length

Enter the longest external dimension of the packed shipping carton.

Carton Width

Enter the external width of the packed carton.

Carton Height

Enter the external height of the packed carton.

Number of Cartons

cartons

Enter the total number of cartons in the shipment.

Measure the Packed Carton

For freight planning, use the external dimensions of the fully packed carton. Do not use product dimensions or empty-box internal dimensions.

Volume Estimate

Estimated Carton & Shipment Volume

Enter carton dimensions

Add carton length, width, height and quantity to calculate shipment volume.

Estimates generated by this calculator are for preliminary planning only. Actual manufacturing cost, finished weight, material consumption, packing, freight, duty, container utilization or other commercial results may vary according to construction, specifications, production method and supplier.

About this calculator

What Is a Carton Volume Calculator?

Carton volume is one of the most important measurements in international freight planning. Shipping companies, freight forwarders, buyers and exporters commonly use CBM — cubic metres to describe the amount of physical space occupied by cargo.

Primeval's Carton Volume Calculator converts carton length, width and height into volume per carton and then multiplies that amount by the total number of cartons in the shipment.

This calculation is useful when estimating ocean freight, comparing LCL quotations, planning FCL container utilization, evaluating packaging efficiency or preparing preliminary shipment information.

The calculator provides a geometric volume estimate. Actual freight planning may also depend on palletization, carton orientation, gross weight, dimensional weight, stacking restrictions, container dimensions and carrier rules.

Simple process

How to Calculate Carton Volume

Enter your specifications and use the result as a practical starting point for product, sourcing and shipment planning.

Measure the carton length

Measure the longest external side of the completely packed carton. Use the final shipping carton rather than product dimensions.

Measure carton width

Measure the second horizontal dimension of the packed carton at its widest point.

Measure carton height

Measure the external height after the carton is closed and ready for shipment.

Enter carton quantity

Enter the total number of cartons expected in the shipment.

Calculate CBM per carton

The dimensions are converted to metres and multiplied together to determine cubic metres per carton.

Review total shipment CBM

The calculator multiplies carton CBM by carton quantity to estimate total cargo volume.

Carton volume is calculated by multiplying external carton length, width and height. When dimensions are entered in centimetres, the result is divided by 1,000,000 to convert cubic centimetres into cubic metres.

Formula

Carton CBM = Length (cm) × Width (cm) × Height (cm) ÷ 1,000,000

What the values mean

Carton Length: External length of the fully packed shipping carton.
Carton Width: External width of the packed carton.
Carton Height: External height of the packed carton.
Carton Quantity: Total number of cartons included in the shipment.
Cubic Metres: The metric volume occupied by a carton or shipment.
Total Shipment CBM: CBM per carton multiplied by total carton quantity.

Practical examples

Carton Volume & Shipment CBM Examples

See how typical values translate into a useful planning estimate.

Example 1

60 × 40 × 35 cm Carton

A common export carton measuring 60 × 40 × 35 cm occupies 0.084 cubic metres.

Length: 60 cm
Width: 40 cm
Height: 35 cm

Result 0.084 CBM per carton

Example 2

100 Cartons at 0.084 CBM Each

Shipment CBM is calculated by multiplying the volume of one carton by the number of cartons.

CBM per Carton: 0.084 CBM
Quantity: 100 cartons

Result 8.400 CBM total shipment volume

Example 3

50 × 40 × 30 cm Cushion Carton

Compressed textile products such as cushion covers can often be packed efficiently into export cartons, although actual dimensions should always be measured after final packing.

Length: 50 cm
Width: 40 cm
Height: 30 cm

Result 0.060 CBM per carton

Example 4

75 × 45 × 40 cm Large Export Carton

Larger cartons can reduce carton count but may affect handling, gross weight and container loading efficiency.

Length: 75 cm
Width: 45 cm
Height: 40 cm

Result 0.135 CBM per carton

Carton CBM

What Is Carton Volume?

Carton volume is the three-dimensional space occupied by a shipping carton. It is calculated using the carton's external length, width and height.

For international freight, carton volume is commonly expressed in cubic metres (CBM). Freight forwarders and logistics teams use this measurement to understand how much cargo space a shipment occupies.

If multiple cartons have identical dimensions, the total shipment volume can be calculated by multiplying CBM per carton by the number of cartons.

CBM Explained

What Does CBM Mean in Shipping?

CBM stands for cubic metre. One cubic metre represents a three-dimensional space measuring 1 metre × 1 metre × 1 metre.

CBM is widely used in ocean freight, air freight, trucking, warehousing and container planning because it provides a standardized measurement of cargo volume.

Ocean Freight CBM is especially important for LCL shipments where cargo occupies only part of a container.
Container Planning Total shipment CBM helps buyers estimate whether cargo may fit into a 20-foot, 40-foot or high-cube container.
Warehousing Volume influences storage-space and handling requirements.
Packaging Comparing product quantity against carton volume can help identify packing inefficiencies.

Formula

How to Calculate CBM from Carton Dimensions

When dimensions are measured in metres, multiply length × width × height directly. When dimensions are measured in centimetres, divide the result by 1,000,000.

Carton Volume Formula by Measurement Unit

Dimensions Entered In	Formula	Result
Metres	Length × Width × Height	CBM
Centimetres	Length × Width × Height ÷ 1,000,000	CBM
Millimetres	Length × Width × Height ÷ 1,000,000,000	CBM

Example

CBM Example for a 60 × 40 × 35 cm Carton

A carton measuring 60 cm × 40 cm × 35 cm has the following volume:

60 × 40 × 35 = 84,000 cm³

Divide by 1,000,000:

84,000 ÷ 1,000,000 = 0.084 CBM

If a shipment contains 100 identical cartons, the theoretical shipment volume is 8.4 CBM.

Measurement

Use External Carton Dimensions for Freight Calculations

One of the most common mistakes in CBM calculations is using product dimensions or internal carton measurements instead of the dimensions of the packed shipping carton.

Freight space is occupied by the carton exterior. Therefore, measure the closed carton at its widest external points after products and packing materials have been placed inside.

Measure after packing Bulging, compression and carton construction can change the final external dimensions.
Use maximum dimensions If a carton is irregular or bulges, carriers may measure the largest external dimensions.
Include packaging The carton itself and packing arrangement determine the actual space occupied by the shipment.
Record dimensions consistently Use the same unit of measurement for length, width and height.

Carton Reference

Example Carton Sizes and CBM

These examples show mathematical carton volume only. Actual carton dimensions should be measured from your finished packing.

Common Carton Volume Examples

Carton Size	CBM per Carton	100 Cartons
40 × 30 × 30 cm	0.036 CBM	3.600 CBM
50 × 40 × 30 cm	0.060 CBM	6.000 CBM
60 × 40 × 35 cm	0.084 CBM	8.400 CBM
60 × 50 × 40 cm	0.120 CBM	12.000 CBM
70 × 50 × 40 cm	0.140 CBM	14.000 CBM
75 × 45 × 40 cm	0.135 CBM	13.500 CBM
80 × 50 × 50 cm	0.200 CBM	20.000 CBM

Freight

Why Carton Volume Matters for International Shipping

International shipping cost is not determined by product value alone. Freight providers need to understand the physical volume and weight of the cargo.

Carton CBM gives buyers an early indication of how much shipping space their order may require and provides essential information when requesting freight quotations.

LCL Ocean Freight Smaller shipments sharing container space are commonly evaluated using cargo volume and weight.
FCL Planning Shipment CBM helps buyers evaluate whether a full-container shipment is approaching practical container capacity.
Air Freight Carton dimensions are used when calculating dimensional or volumetric weight.
Courier Shipments Express carriers frequently compare physical and dimensional weight.
Inland Transport Vehicle loading and warehouse planning can also depend on carton dimensions.

LCL Shipping

Using Carton CBM for LCL Freight Planning

LCL means Less than Container Load. It allows multiple shippers to share container space rather than booking an entire container.

Because space is shared, cargo volume is an important commercial input. The shipment's total CBM is commonly provided to freight forwarders together with gross weight, carton count, commodity and origin/destination information.

The calculator can provide the initial volume figure, but the freight forwarder determines the actual charge according to the applicable tariff and shipment conditions.

FCL Shipping

Using CBM for Full Container Load Planning

When shipment volume grows, buyers may compare LCL shipping against booking a full container. Theoretical container internal volume provides a useful reference, but it should not be treated as the number of cubic metres that can always be packed.

Physical loading efficiency depends on carton dimensions, orientation, pallets, void spaces, cargo weight, container door dimensions and loading method.

Approximate Container Volume Reference

Container Type	Approx. Internal Volume	Planning Note
20 ft Standard	≈ 33 m³	Actual loadability depends on cargo and packing
40 ft Standard	≈ 68 m³	Usable packed volume is normally lower than theoretical volume
40 ft High Cube	≈ 76 m³	Higher internal height provides additional volume
45 ft High Cube	≈ 86 m³	Availability and shipping lanes vary

Important Difference

CBM Is Not the Same as Container Loading Capacity

A shipment with a calculated volume of 60 CBM does not necessarily fit perfectly into a container with a theoretical volume above 60 CBM.

Cartons are rigid three-dimensional objects. Differences between carton dimensions and container dimensions create unused spaces. Pallets, irregular products and loading restrictions can further reduce practical utilization.

Use a dedicated container-loading calculation when estimating the number of cartons that may physically fit inside a container.

Volumetric Weight

Carton Volume vs Volumetric Weight

CBM measures physical volume. Volumetric weight, also called dimensional weight, converts package dimensions into an equivalent billing weight according to a carrier-specific formula.

For example, air-freight and courier providers may compare actual gross weight against dimensional weight and charge according to the applicable higher value.

The dimensional divisor is not universal, so buyers should confirm the correct method with their carrier or freight forwarder.

Net & Gross

Carton Volume Does Not Tell You Shipment Weight

Volume and weight describe different characteristics. Two cartons with exactly the same external dimensions and CBM can have very different gross weights depending on what is packed inside.

CBM Measures physical cargo volume.
Net Weight Weight of the products excluding shipping packaging.
Gross Weight Weight of products plus cartons and relevant packing materials.
Chargeable Weight Freight billing weight determined according to the carrier's applicable rules.

Home Textiles

Why Carton Volume Is Especially Important for Home Textile Buyers

Many home-textile products have a relatively low density compared with their physical size. Cushions, bedding, throws and certain rugs can consume significant shipping volume even when their product value or net weight is moderate.

Packaging design can therefore have a meaningful effect on freight economics.

Cushion Covers Usually pack relatively compactly because inserts are not included.
Filled Cushions Can occupy substantially more carton volume unless compression is technically suitable.
Throws & Blankets Folding and compression method can influence carton efficiency.
Bed Linen Retail packaging and carton assortment influence final shipment volume.
Rugs Rolled or folded construction requires different volume and container-loading considerations.

Packaging Efficiency

How Buyers Can Reduce Carton Volume

Reducing unnecessary packaging volume can lower transportation and storage requirements, but packing optimization should never compromise product protection or quality.

Optimize carton dimensions Choose carton sizes based on the actual packed arrangement instead of using oversized standard cartons.
Improve folding Consistent folding can reduce unused space in textile cartons.
Reduce empty void Excessive internal empty space increases CBM without increasing shipped quantity.
Review retail packaging Oversized retail boxes or inserts can materially increase shipment volume.
Consider safe compression Some soft textile products may be compressed, provided appearance and performance are not damaged.
Standardize carton sizes Well-planned carton modules can improve handling and sometimes container utilization.

Packing Optimization

Why Pieces per Carton Matters

CBM per carton alone does not reveal how efficiently products are packed. Buyers should also examine how many finished pieces fit into each carton.

For example, if two packaging methods use the same carton dimensions but one safely holds 20 cushion covers while another holds only 15, the first method uses shipping volume more efficiently.

A useful next calculation is therefore freight or CBM per product unit, especially when comparing packaging alternatives.

Supplier Quotations

What Packing Details Should Buyers Request from Suppliers?

Before confirming an international order, buyers should request a preliminary or final packing specification whenever freight cost is commercially significant.

Pieces per carton Number of individual products packed into each export carton.
Carton dimensions External length, width and height of the final packed carton.
Net weight Product weight excluding transport packaging.
Gross weight Total packed weight of the carton.
Total cartons Estimated number of cartons for the order.
Total CBM Combined cubic volume of all cartons.
Packing method Bulk pack, retail pack, individual polybag, box, bale, roll or other configuration.

Freight Quotations

Information to Send a Freight Forwarder

A CBM figure is useful, but freight forwarders normally need additional shipment information to prepare a meaningful quotation.

Origin Factory location, pickup city, port or airport of origin.
Destination Destination port, airport, city or delivery location.
Carton count Total number of shipping cartons or packages.
Carton dimensions External dimensions of each carton type.
Gross weight Total packed shipment weight.
Commodity General description of the goods being shipped.
Shipping mode Ocean LCL, FCL, air freight, courier or another service.
Commercial term Clarify whether freight planning relates to EXW, FOB, CIF, DDP or another agreed Incoterm.

Buyer Strategy

Compare Freight Cost per Product, Not Only Freight per Shipment

When evaluating suppliers or packing methods, buyers can divide estimated shipment freight by the number of products to understand the transportation cost allocated to each unit.

This can be especially useful for bulky home-textile categories where freight represents a meaningful percentage of landed cost.

Important

Carton Volume Is a Planning Calculation, Not a Freight Quotation

This calculator determines geometric carton volume from the dimensions entered. It does not calculate carrier tariffs, destination charges, freight surcharges, container loading patterns, customs duty or actual chargeable weight.

For shipment booking, provide your freight forwarder with verified packed dimensions, gross weight, carton quantity, commodity, origin and destination.

For importers & buyers

Before Using CBM to Compare Freight Options

CBM is an essential logistics measurement, but meaningful freight comparisons require the same shipment assumptions and verified packing data.

Use final external dimensions

Factory estimates can change after production and final packing.

Check every carton type

Mixed-size shipments should calculate each carton size separately before totals are combined.

Include total gross weight

Freight providers may consider both volume and weight.

Confirm palletization

Pallets can materially change shipment dimensions and total freight volume.

Compare the same Incoterm

FOB, CIF, DDP and other commercial terms include different cost responsibilities.

Reconfirm before booking

Final carton count, dimensions and weight should be verified after production.

Source with Primeval

Planning a Home Textile Order from India?

Primeval helps international buyers source home textiles and home décor products from India. Use carton volume to understand preliminary shipment requirements, then share your product specifications, quantity, packaging and destination for a commercial sourcing discussion.

Cushion covers
Filled cushions
Rugs and carpets
Throws and blankets
Curtains
Bed linen
Table and kitchen textiles
Bath textiles
Private-label production
Custom packaging
Export carton planning
Factory sourcing
Sampling support
Production follow-up
International buyer support

Buyer questions

Carton Volume Calculator FAQs

Helpful answers about calculations, sourcing estimates and commercial planning.

How do I calculate carton volume?

Multiply the carton's external length, width and height. If dimensions are in centimetres, divide the result by 1,000,000 to calculate cubic metres or CBM.

What is the formula for carton CBM?

For dimensions in centimetres: Length × Width × Height ÷ 1,000,000 = carton CBM.

What does CBM stand for?

CBM stands for cubic metre, a standard metric unit used to measure three-dimensional cargo volume.

How many cubic metres are in one CBM?

One CBM is exactly one cubic metre.

How do I calculate CBM for multiple cartons?

Calculate the CBM of one carton and multiply it by the number of identical cartons.

How do I calculate the total volume of 100 cartons?

Multiply the CBM per carton by 100. For example, a 0.084 CBM carton multiplied by 100 equals 8.4 CBM.

What is the CBM of a 60 × 40 × 35 cm carton?

A 60 × 40 × 35 cm carton has a theoretical volume of 0.084 CBM.

What is the CBM of a 50 × 40 × 30 cm carton?

A 50 × 40 × 30 cm carton has a theoretical volume of 0.060 CBM.

Should I use internal or external carton dimensions?

Use the external dimensions of the fully packed shipping carton because those dimensions represent the physical space occupied during transportation.

Should I measure the carton before or after packing?

For accurate freight planning, measure the carton after it has been packed and closed because bulging or compression can change the final dimensions.

Does carton weight affect CBM?

No. CBM measures volume only. Two cartons with identical dimensions have the same CBM even if they have different weights.

Is CBM the same as gross weight?

No. CBM measures cargo volume, while gross weight measures the weight of products plus packaging.

Is CBM the same as volumetric weight?

No. CBM is physical volume. Volumetric or dimensional weight converts package dimensions into an equivalent billing weight according to a carrier formula.

Why is CBM important for ocean freight?

Cargo volume affects the amount of container space used. CBM is particularly important for LCL shipments and preliminary container planning.

What is LCL shipping?

LCL means Less than Container Load. Multiple shippers share container space, and shipment volume is an important part of freight planning.

What is FCL shipping?

FCL means Full Container Load, where a shipper books a container for its cargo rather than sharing space under a normal LCL arrangement.

Can CBM tell me how many cartons fit in a container?

CBM provides a useful volume reference but does not guarantee physical fit. Actual loading depends on carton dimensions, orientation, pallets, voids, cargo weight and container limitations.

How much CBM fits into a 20-foot container?

A standard 20-foot container has roughly 33 cubic metres of theoretical internal volume, but practical usable cargo volume is generally lower and depends on the shipment.

How much CBM fits into a 40-foot container?

A standard 40-foot container has roughly 68 cubic metres of theoretical internal volume. Actual usable capacity depends on carton arrangement and shipment characteristics.

How much CBM fits into a 40-foot high-cube container?

A 40-foot high-cube container has roughly 76 cubic metres of theoretical internal volume, but the practical load will normally be lower.

Can this calculator calculate cubic feet?

Yes. The result includes approximate total cubic feet in addition to total CBM.

Can this calculator be used for air freight?

Yes for determining physical volume, but air-freight charging usually also requires a dimensional-weight calculation using the carrier's applicable divisor.

Can this calculator be used for courier shipments?

It can calculate package volume, but courier billing normally depends on actual weight and dimensional weight according to the carrier's rules.

Does pallet volume need to be included?

Yes when goods will actually be shipped on pallets. Measure or calculate the final palletized shipment dimensions rather than carton volume alone.

What if my shipment has cartons of different sizes?

Calculate each carton-size group separately and add their total CBM values together.

How can I reduce shipment CBM?

Review carton dimensions, folding method, internal void space, retail packaging and safe compression opportunities without compromising product quality.

Does lower CBM always mean lower freight cost?

Not always. Freight charges can depend on volume, weight, route, service, minimum charges, surcharges and commercial conditions.

Can carton volume help compare suppliers?

Yes. Packing data can reveal differences in shipment efficiency, but comparisons should use equivalent products, quantities and packaging standards.

Is this carton volume result a confirmed freight quote?

No. The calculator provides geometric volume only. A freight forwarder or carrier must provide the actual transportation quotation.

What information should I give a freight forwarder?

Provide carton count, final external dimensions, gross weight, product description, origin, destination, shipping mode and relevant commercial terms.

Continue calculating

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