About this cbm calculator
CBM = length × width × height in metres × number of cartons. A 60 × 40 × 40 cm carton is 0.096 m³; 50 of them are 4.8 CBM, about 14.5% of a 20 ft container’s usable 33 m³. Sea freight (LCL) charges the greater of CBM and tonnes, 1 CBM = 1,000 kg.