Container Import Cost Calculator

The calculation itself

Container import cost is ocean freight for the container, plus origin charges, plus destination terminal handling, plus customs entry and duty, plus drayage to your warehouse, plus any demurrage or detention. Divided by the units inside, it gives the per-unit landed cost.

Capacity is the constraint that decides everything else. A 20-foot container holds roughly 28 to 33 usable cubic metres, a 40-foot around 58 to 67, and a 40-foot high cube up to about 76.

Running the numbers

A product packed at 0.012 cubic metres a unit. A 40-foot high cube at 76 cubic metres holds about 6,300 units.

Ocean freight $3,800 port to port, origin charges $650, destination terminal handling $520, customs entry and brokerage $240, drayage $580. Logistics total $5,790, $0.92 a unit.

Against LCL for 1,000 units at $2,400 of freight plus $945 of destination charges, $3.35 a unit. The full container is 73% cheaper per unit on logistics, which is the entire reason importers order in container quantities.

What gets missed

Containers are limited by volume or by weight, whichever binds first. A dense product hits the weight limit, around 26 tonnes for a 40-foot, with the container half empty, and the cubic capacity is irrelevant. Calculating both before assuming a fill is essential.

Demurrage and detention are the charges that turn a good container economics calculation into a bad one. Free time at the port is typically three to five days, and charges after that run $150 to $400 a day and escalate.

What to do next

Calculate the fill from real packed carton dimensions and weights, not from product specs. Carton dimensions, pallet configuration and the gaps between them commonly cost 10% to 15% of theoretical capacity.

Then plan the collection before the container arrives. Demurrage is entirely avoidable and it is the most common way an importer loses several thousand dollars on an otherwise well-planned shipment.

Balancing container economics against carrying cost

The 73% per-unit logistics saving is real and it comes with 6,300 units of stock instead of 1,000. At $22 a unit and 25% carrying cost, holding an extra 5,300 units for the additional time they sit costs real money.

If the product sells 40 units a week, 6,300 units is 157 weeks of stock, three years. The logistics saving of $2.43 a unit is dwarfed by three years of carrying cost at $5.50 a unit a year, and the container is plainly wrong.

The correct question is what shipment size the sales rate supports, and then whether that quantity is better served by LCL, a shared container, or consolidating several products into one full container. The last option is usually the answer for a growing importer, and it captures most of the container economics without three years of stock, which makes it the most useful thing this calculation reveals.

How the goods are palletised determines the fill more than the carton size does. Floor-loading cartons rather than palletising typically gains 10% to 15% of capacity, at the cost of slower unloading at the destination.

Which is right depends on what unloading costs at your end. For a business with a dock and labour, palletised is faster and worth the space; for one paying a driver by the hour to hand-unload, the calculation frequently goes the other way.