Deadweight tonnage
（重定向自Dead weight tonnage）
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![Scale for a 6,000 tonne DWT ship.](/Images/godic/202501/08/Echelle_Port_en_lourd0007.jpg")
- Not to be confused with vessel displacement.
Deadweight tonnage (also known as deadweight; abbreviated to DWT, D.W.T., d.w.t., or dwt) or tons deadweight (TDW) is a measure of how much mass a ship is carrying or can safely carry; it does not include the weight of the ship. DWT is the sum of the weights of cargo, fuel, fresh water, ballast water, provisions, passengers, and crew.