Ship measurements

vertical distance between the waterline and the bottom of the hull (keel)

unit of cargo capacity, TEU

watertight body of a ship or boat

unit of volume for the gross volume of a ship; 100 ft³ (= 2.83 m³)

ship's weight

measurement of a ship's weight-carrying capacity, measured as the difference between light and loaded conditions

Tonnage is a measure of the capacity of a ship, and is commonly used to assess fees on commercial shipping. The term derives from the taxation paid on tuns or casks of wine. In modern maritime usage, "tonnage" specifically refers to a calculation of the volume or cargo volume of a ship. Although tonnage (volume) should not be confused with displacement (the actual mass of the vessel), the long ton (or imperial ton) of 2,240 lb is derived from the fact that a "tun" of wine typically weighed that much.

thumb|upright=1.4|Two Panamax ships seen almost touching the walls of the Miraflores (Panama)|Miraflores Locks. thumb|upright=1.4|Neopanamax ship passing through the new Agua Clara Locks Panamax and New Panamax (or Neopanamax) are terms for the size limits for ships traveling through the Panama Canal. The limits and requirements are published by the Panama Canal Authority (ACP) in a publication titled "Vessel Requirements". These requirements also describe topics like exceptional dry seasonal limits, propulsion, communications, and detailed ship design.

degree of heel or leaning of vessel, typically a water-going

distance from the waterline to the upper deck level of a ship or to the gunwale of a boat

right|thumb|upright=1.2|Two ships moored at El Ballah during a Suez Canal transit thumb|right|upright=1.2|Post-deepening of the Suez Canal, larger ships pass through the canal – in this case, a [[capesize bulk carrier approaches the Egyptian–Japanese Friendship Bridge]] thumb|400px|Comparison of bounding box of Suezmax with some other ship sizes in isometric view

width of a ship at its widest point, often measured at its nominal waterline

maximum length of a vessel's hull measured parallel to the waterline

thumb|Aframax tanker Mitera Marigo An Aframax vessel is an oil tanker with a deadweight between 80,000 and 120,000 metric tonnes. The term is based on the Average Freight Rate Assessment (AFRA), a tanker rate system created in 1954 by Shell Oil to standardize shipping contract terms.

nonlinear measure of a ship's overall internal volume

thumb|right|MV Berge Athene, a capesize bulk carrier of 225,200 DWT, built in 1979 Capesize ships are the largest dry cargo ships with ball mark dimension: about 170,000 DWT (deadweight tonnage) capacity, long, beam (wide), draught (under water depth). They are too large to transit the Suez Canal (Suezmax limits) or Panama Canal (Neopanamax limits), and so have to pass either Cape Agulhas or Cape Horn to traverse between oceans.

Malaccamax is a naval architecture term for the largest tonnage of ship capable of fitting through the Strait of Malacca. Bulk carriers and supertankers have been built to this tonnage, and the term is chosen for very large crude carriers (VLCC). They can transport oil from Arabia to China. A typical Malaccamax tanker can have a maximum length of , beam of , draught of , and tonnage of 300,000 DWT.

thumb|Handymax Bulk Carrier "Orientor 2"

length of a vessel at its summer loadline

thumb|Comparison of bounding box of Seawaymax with some other ship sizes in isometric view. A Seawaymax vessel is one of the maximum size that can fit through the canal locks of the St. Lawrence Seaway, linking the inland Great Lakes of North America with the Atlantic Ocean.

Q-Max is a type of ship, specifically a membrane type LNG carrier. In the name Q-Max, "Q" stands for Qatar and "Max" for the maximum size of ship able to dock at the Liquefied natural gas (LNG) terminals in Qatar. Ships of this type are the largest LNG carriers in the world.

thumb|Polish bulk carrier Kociewie in the Port of Hamburg

length of a vessel at its nominal waterline

Baltimax is a naval architecture term for the largest ship measurements capable of entering and leaving the Baltic Sea in a laden condition.

distance from water to the highest point on a vessel or lowest point on a bridge span, etc.

thumb|400px|Comparison of bounding box of Chinamax with some other ship sizes in isometric view. Chinamax is a standard of ship measurements that allow conforming ships to use various harbours when fully laden, the maximum size of such a ship being draft, beam and length overall. An example of ships of this size is the Valemax bulk carriers.

measurement of the internal volume of a sailing vessel (approx. 1650–1849)

term or definition relating to measuring a ship's characteristics

measurement of the initial static stability of a floating body

ship cargo space volume

unit of volume for the cargo capacity of a ship; 100 ft³ (= 2.83 m³)