1 kg = 2.20462 lb
1 lb = 0.45359 kg
2.54 cm = 1 inch
1 inch = 2.54 cm
1 CBM = 35.31 ft³
1,000 kg = 1 t
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Get My Exact QuoteQuestions buyers ask
+Which units do Chinese suppliers use?
Metric: kg for weight, cm/mm for dimensions, cubic meters (CBM) for volume. Ask for carton sizes as L×W×H in cm and total gross weight in kg — that's the format freight quotes need.
+Why do I need CBM at all?
Sea LCL pricing is per CBM (cubic meter). One standard carton of 60×40×40 cm is 0.096 CBM — roughly 10.4 cartons per full CBM. Volume decides your sea cost, weight decides your air cost.
+How many kg is a full container?
A 20ft container maxes out at ~21,700 kg payload but usually cubes out first: ~28 CBM of cargo fits. If your cargo density is above ~500 kg/CBM, ask us to quote by weight instead.