Cruise Ship Passenger Capacity

The world's best cruise ships passenger capacity is usually based on double occupancy, which means all berths available, according to the cruise ship accommodations categories. The passenger ship cabins usually accommodates 2-3 guests, but there are some "smaller" and "big" exceptions.
The single cruise cabins (called also "studios"), though rarely available, offer some of the cheapest cruise rates for solo travelers, by avoiding the double occupancy policy of all the major cruise companies, with single supplement rates between 50 and 100% (depending on line and ship).
The family suite cruise accommodations generally have the biggest capacity (up to 6 guests), and are one of the most expensive cabin categories (again, not available on all ships). Cheap suites are available on most of the passenger ships of Carnival, Royal Caribbean, MSC, and Costa.
The max passenger capacity of cruise ships is this ideal financial situation, when all the berths, plus all upper and lower bunks, "Pullman" beds, and single and double sofa beds (available in types and numbers according to the ship's categories) are occupied by the most numerous crowd the vessel can ever gather on-board. As an example, the first in the list of the biggest cruise ships in the world - the MS Oasis of the Seas of Royal Caribbean International, has capacity of 5,400 guests at double occupancy, and max capacity of 6,296 passengers if all berths-bunks-beds are occupied.
However, on most of the sailings, this full-ship passenger capacity (even at double occupancy level) is not reached, which automatically opens the "big ships doors" for kids free cruise deals, buy one get one free cruise deals, free cabin upgrades, or "just" huge discounts.
CONTINUING with normal and max Passenger Cruise Ships Capacity by the names of all major lines, and their super famous vessels.