Cruise Ship Cruising Speed

How fast is a cruise ship, which is the fastest cruise ship in the world? Read all about the cruise ship speed (average/top cruising speed) which is generally measured in knots, but also in mph/kph. This page is integrated with our surveys on ship dimensions, ship propulsion/engines, power and our cruise tracker (current positions).

How fast is the fastest cruise ship in the world?

Cunard Line's Transatlantic liner RMS Queen Mary 2 (QM2) weighs almost 151,500 tons, with a cruising speed of 29 knots (33,5 mph / 54 kph). This unique vessel is the only currently operational Atlantic Ocean liner crossing weekly the huge distance between Southampton (Great Britain's maritime capital) and NYC New York USA (world's financial capital). The below photo shows an engine room telegraph (aka engine order telegraph or Chadburn). This device was used on older ships and submarines for communication between Navigation Bridge and Engine Room, where crew powered the vessel at certain (fixed) speeds.

QM2's Transatlantic crossing distance is almost 3,000 nautical miles, or ~3,400 statutes/normal miles (5,500 km), and this is done in less than 7 days. The world's most famous ocean liner (maybe after RMS Titanic) has an exterior deck space of 14,200 m2 for passengers to enjoy the "fastest sea ride" ever, and, of course, transparent windscreens to shield them at the high speeds.

The world's second-fastest cruise ship is MS Voyager (last named Costa Voyager), now owned and operated by a Chinese company. Liner's service speed is 28 Kn (32 mph - 51,5 kph). But there's a trick - this vessel weights just 24,400 tons. In comparison, the world's largest cruise ships - Royal Caribbean's Oasis-Class (nearly 225,300 tons each) cruise with an average speed of 20 knots (23 mph / 37 kph) and can go with "top speed" 22,5 Kn (26 mph / 42 kph).

The world's third-fastest cruise ship is P&O Oriana (now Piano Land). In 1997, it won the "Golden Cockerel" award for being the company's fastest vessel - accomplishing a maximum cruising speed of 26,2 Kn (31 mph / 50 kph).

Cruising Speed

By definition, the term "cruising speed" signifies the speed for any vehicle (could be cars, ships, aircraft) and it's usually about a speed somewhat below the maximum (as specified by the manufacturer) that is comfortable, but also economical.

Generally, modern cruise ships don't have to be fast - it's not necessary at all. Instead, the new cruisers' demand is for big vessels (as tonnage and passenger capacity), stable and safe (related to propulsion and generators), comfortable, regular as departures, excitingly thrilling as to onboard activities and amenities, and also alluringly tempting as itineraries. And the latest trend is cruise ships also must be more and more fuel-efficient.

For bigger ships, the optimum cruising speed is 20-22 Kn (23 mph / 37 kph). Bigger passenger ships have a large draft (the "invisible" part of the vessel, beneath the waterline), which causes huge resistance and hampers "fast and furious at sea" performances. In return for it, drafts of 23-30 ft (7-9 m) allow smooth rides when traveling even with 25-27 mph (over 40 kph). The vessel's close to top speed cruising is generally used when avoiding storms (especially during the Caribbean summers), during tests, and sometimes when assisting other vessels.

The speed of cruise ships is measured in knots (Kn), 1 knot is 1 nautical mile per hour. Cruise help - for the "normal" speed values, multiply knots by 1,15  (mph), or 1,852 (kph). Below, you may compare the average passenger ship speed in the huge fleets of several big cruise ship companies and lines.

The knot is a nautical term, meaning cruising one hour the distance of one nautical mile. And one nautical mile (by the contemporary world standards) equals 1,15 statue (or "land") miles (6,080 "modern" feet) or 1,852 kilometers. So, to convert the speed values of ships (and riverboats, and of whatever floats) simply multiply knots by the above constants. Worldwide, the knot speed measuring is also used in meteorology and air navigation.

Cruise ship speed (knots to mph/kph conversion)

Speed of Cruise Ships in Knots (Kn), Miles per hour (mph) and Kilometres per hour (kph)

The cruise ship top speed is 2-3 knots higher than its service speed, and it's required rarely - in cases of emergencies (to avoid storms or on rescue operations) and during tests. The average speed of cruise ships is about 20-24 knots. But if you really need the details - well, enjoy the data from our table!