Work out cargo stowage factor instantly with clear inputs, formula shown and shareable results.
Stowage factor is the volume one tonne of cargo occupies including the voids between packages, so it is the reciprocal of bulk density. It decides whether a hold fills up by weight or by volume: light cargo with a high stowage factor cubes out long before deadweight is reached.
Stowage factor
SF = volume occupied / weight (m3 per tonne); max weight = hold volume / SF
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.
The hold is full by volume while deadweight remains. Cargo with a stowage factor above about 1.4 m3/t typically cubes out first.
Yes. Stowage factor is measured as stowed, so it already includes the unusable space around irregular packages and dunnage.