Comment Re:882 foot Titanic (Score 2) 42
Gross tonnage is ship volume and is THE measure of ship size.
The Titanic's GT was 46,000.
The top two Royal Caribbean ships are 225,000 and most of the rest of the pack weigh in at 140-150.
The're pretty much 4x or 3x the size (volume), and 20% longer.
Displacement is a different factor altogether, but even then...
Gross tonnage normally is a much higher value than displacement. This was not always the case; as the functions, engineering and architecture of ships have changed, the gross tonnage figures of the largest passenger ships have risen substantially, while the displacements of such ships have not. RMS Titanic, with a gross register tonnage of 46,329 GRT, but a displacement reported at over 52,000 tons, was heavier than contemporary 100,000 – 110,000 GT cruise ships which displace only around 50,000 tons.
Emphasis mine.