Work out container slot utilisation instantly with clear inputs, formula shown and shareable results.
Slot utilisation counts every box on board against nominal capacity, but only laden boxes earn freight. Reporting both figures separates the operational fill from the commercial fill, and the empty share shows how much capacity is consumed repositioning equipment rather than carrying cargo.
Slot utilisation
utilisation = (laden + empty TEU) / nominal capacity; revenue utilisation uses laden TEU only
Marine results are planning estimates only. Verify against the vessel's approved stability booklet, loading manual, class society rules and applicable maritime regulations before loading or sailing.
Weight limits, stability, reefer plug availability, stack weight limits and port rotation constraints usually bite before slots run out.
Trade imbalance leaves boxes where they are not needed, so repositioning empties is a cost of keeping equipment available in export regions.