CBM Shipping Volume Calculator

How to calculate shipping volume

1. Measure the outside length, width and height of a packed package. Include the packaging; do not use the box's usable inside dimensions.
2. Choose the dimension unit for that row and enter the three measurements. Set the number of packages that have those exact dimensions.
3. For another package size, add a row and enter its own dimensions, unit and count. Complete every row, or remove an unused one.
4. Read total CBM and equivalent cubic feet. Open Calculation details to check each contribution, then copy the current qualified summary if needed.

What this CBM calculator supports

• Centimetres, metres, inches and international feet, with one unit for all three dimensions in each row.
• One box size by default and up to ten sizes when a shipment contains different packages.
• A total in cubic metres, an equivalent in cubic feet and the combined package count.
• Per-package volume, each size's subtotal and the calculation kept in closed details.
• Decimal measurements, exact unit factors and totals calculated before display rounding.

When a shipping-volume calculation helps

• Find the geometric volume of one packed carton or a batch of identical cartons.
• Combine different box sizes into one volume total without treating every carton as the same size.
• Use the outside dimensions of a loaded rectangular pallet or crate, including its base and packaging. Do not also count the cartons inside that same load.
• Prepare a volume figure to discuss with a freight provider. A volume total alone is not a freight quotation or guaranteed chargeable amount.

Understanding CBM and package dimensions

CBM is shorthand for cubic metres. One cubic metre is the volume of a cube with edges of one metre, not a square-metre floor area.

For one rectangular package, multiply length, width and height after expressing them in metres. Multiply by the number of identical packages, then add the unrounded subtotals for all sizes.

Each row has one dimension unit. A different row may use another unit. Changing a unit reinterprets the same numbers; it does not preserve the previous physical size by converting them. Enter decimals with a dot or comma, without digit grouping; a comma is always a decimal separator.

Measure the fully packed outside shape. For an irregular load, its enclosing rectangular dimensions give a bounding-box estimate, not the object's exact geometric volume.

A foot is exactly 0.3048 m, so one cubic foot is exactly 0.028316846592 m³. Cubic conversion factors are obtained by cubing length factors, not by applying the same factor only once.

Volumes display up to six decimals. About means display rounding occurred. Less than marks a positive amount below the display step. Add the original subtotals, not their rounded displayed numbers.

Worked shipping-volume examples

A 60 × 40 × 35 cm carton has volume 0.6 × 0.4 × 0.35 = 0.084 m³.

Twenty-four cartons of that size have total volume 0.084 × 24 = 2.016 m³, or about 71.194368 ft³.

Ten cartons of 60 × 40 × 35 cm total 0.84 m³. Two packages of 1 × 1 × 1 m add 2 m³. Together, 12 packages have volume 2.84 m³.

A cube measuring 12 × 12 × 12 in is exactly 1 ft³. Its metric volume is 0.028316846592 m³, shown here as About 0.028317 m³.

What the result does not establish

The calculator does not apply carrier dimension rounding, volume minima, density rules, dimensional-weight divisors, duties or prices. Ask the provider how your shipment will be measured and billed.

Adding package volumes does not prove they fit in a container, vehicle or storage space. Shape, doors, orientation, stackability and loading clearance also matter.

A result is based on the entered outside dimensions. Packaging, pallet bases and bulges affect those measurements; the tool does not infer or add them.

The software accepts 1 to 10 rows, dimensions from 0.001 to 10000 in the selected unit and whole counts from 1 to 1000000 per row. These are input limits, not shipping recommendations or carrier limits.

Inputs and privacy

The tool keeps measurements and counts in this page's memory. It does not intentionally save them in a link, browser storage or an upload.

Copy sends the current summary to your clipboard only when you request it. Clear starts a new blank calculation. Site-wide network, consent and analytics behavior is separate from this tool.