Advertisement
Advertisementdisplay · responsive
01
Definitions #
A ship's total internal volume, used to classify vessel size, not its weight. Measured in tons (1 ton = 100 cubic feet) — not cargo weight.
Technical A dimensionless index of a vessel's overall enclosed volume, per IMO ITC 1969, used for port dues and safety regulations.
Example The vessel's gross tonnage determines the applicable port tax and pilotage fees.
02
Etymology #
From Middle English 'tunne' (barrel) + 'tonnage' (charge per tun of volume); the 'gross' distinguishes from net tonnage.
03
Collocations #
- gross registered tonnage 旧制总登记吨位（已废止）
- gross tonnage calculation 总吨位计算（按内部容积）
04
Real Business Examples #
- A vessel with GT over 500 is subject to SOLAS certification.
- The brochure lists the ship's gross tonnage as 120,000.
Advertisement
Advertisementin-article · fluid
05
Register & Variants #
- Register: formal
- BrE/AmE: 国际通用
06
Synonyms & Antonyms #
- Synonyms: GT
- Antonyms: net tonnage
07
Common Errors #
- Confusing gross tonnage with deadweight tonnage GT is volumetric, DWT is weight capacity.
08
Confusable Terms #
- deadweight tonnage vs Gross Tonnage
- DWT measures cargo capacity; GT measures volume.
09
Frequently Asked Questions
Is gross tonnage the same as displacement??
No, displacement is actual weight of the ship; GT is volume.
Advertisement
Advertisementmultiplex · grid
Published: 2026-09-27 Category: Shipping