Container Load Calculator for FBA Cartons: China to US

Estimate a container count from carton fit and payload

Enter the confirmed usable interior dimensions and available cargo payload for your booking. This tool compares two uniform horizontal carton orientations, keeps cartons upright, and applies the smaller of geometric capacity and weight capacity. Divide total cartons by that capacity and round up to estimate containers.

Worked loading example

With 50 × 40 × 30 cm cartons, 580 × 230 × 230 cm usable space holds 56 cartons per layer and seven layers, or 392 cartons geometrically. At 10 kg per carton and a 20,000 kg cargo allowance, weight permits 2,000 cartons, so dimensions bind. One thousand cartons therefore require three containers under this simplified model. These dimensions and weights are illustrative inputs, not guaranteed equipment specifications.

Before a China-to-US FBA booking

Have the loading team confirm the container door opening, carton compression strength, permitted stacking and space needed for bracing. If cargo will move on pallets, use the pallet footprint and actual stack configuration in a separate loading plan. Confirm the warehouse delivery method and unloading arrangement before treating a floor-loaded estimate as an executable FBA shipment.

When this estimate is unsuitable

Mixed carton sizes, fragile goods, irregular shapes and incompatible cargo need a reviewed load plan. The calculation does not choose a carrier, set legal road weights or establish Amazon receiving compliance. The same geometry can support another destination when the carrier-confirmed usable space and payload are entered; changing a route name alone does not change the arithmetic.