Light Displacement Tonnage (LDT)
The weight of the ship herself (steel, machinery and equipment) empty of cargo, fuel and stores; the basis for scrap pricing.
- Category
- Markets and Pricing
- Abbreviation
- LDT
- Last reviewed
How it works
Light displacement tonnage (LDT) is the weight of the vessel with no cargo, bunkers, stores or crew aboard: essentially the recoverable steel and machinery. It is the difference between loaded displacement and deadweight.
LDT is the unit in which demolition sales are priced, since a recycler is buying the ship’s material content. It is unrelated to gross or net tonnage, which measure volume.
Where it shows up on The Maritime
Also known as: LDT, light displacement, lightweight.
Related terms
Demolition
The sale of a ship at the end of her life for recycling, priced per light displacement tonne (LDT).
Deadweight Tonnage (DWT)
The total weight a ship can carry (cargo plus fuel, stores, crew and water) at her load line, in metric tonnes.
Gross Tonnage (GT)
A dimensionless measure of a ship’s total internal volume, used for regulation, manning and port-due calculations.
More markets and pricing terms
A plain-English reference definition: our own explanation of a standard shipping concept, not a licensed source or legal advice. See the full glossary or the broader maritime dictionary.
Last reviewed: .

