Interior staterooms on Carnival are the least expensive, with the basic bed, bathroom, closet and television. situated on inner hallways and thus no views of the water. A regular interior room is typically 185 sq. ft.
The next price level up is the Ocean View stateroom, mostly identical to interior staterooms but with large windows to see the water. The average Ocean View stateroom is 185 sq. ft. but on the newer class ships, 220 sq. ft.
The Balcony stateroom mimics the Ocean View, but includes an outdoor balcony. The balconies are anywhere from 35 to 75 sq. ft. Premium balcony rooms offer a wrap-around balcony.
Suites on Carnival cruises have more space and amenities than the lower level staterooms. On newer class ships they are around 275 sq. ft. and, along with the balcony and separate sitting room, have two closets and a private whirlpool bathtub.
Grand Suites average anywhere from 330 sq. ft. on older ships to 345 sq. ft. on the newer class of ships. In addition to the extra space of a regular suite, the newer Grand Suite staterooms offer a walk-in closet. The balconies are also the largest.