How Fast Does a Cruise Ship Cruise At?

By Anna Duncan

Cruise ships travel at an average speed of around 17 knots, which is equal to about 19.5 miles per hour. Although this may not seem particularly fast, it is actually quite impressive given the size and weight of these vessels.

On the open ocean, a cruise ship can reach speeds of up to 25 knots, or approximately 28. The speed of a cruise ship is usually determined by the size and type of its propulsion system, as well as weather and sea conditions.

The Propulsion System

Cruise ships are propelled by powerful diesel engines that are connected to one or more large propellers. This type of propulsion system provides a great deal of power in order to move the large vessel through the water, although it does not provide very efficient fuel economy. In addition to this, cruise ships are also equipped with bow thrusters which are used for maneuvering in ports and tight channels.

Engine Power

The power output from a cruise ship’s diesel engines varies depending on the size and design of the vessel. Generally speaking, larger vessels have larger engines that produce higher amounts of power in order to propel them forward faster. Cruise ships typically have four or more engines that can produce up to 200 megawatts (MW) or more of power in total if needed.

Weather & Sea Conditions

The weather and sea conditions can also affect a cruise ship’s cruising speed significantly. For example, if there is heavy rain or strong winds present then it could slow down the vessel due to increased water resistance and drag on its hulls. Similarly, if there are rough waves then these could cause the ship to roll from side-to-side which would reduce its speed significantly as well.

Conclusion: Cruise ships travel at an average speed of around 17 knots, but depending on their propulsion systems and environmental conditions they can reach speeds up to 25 knots or approximately 28.5 miles per hour under ideal circumstances. With powerful diesel engines driving them forward and state-of-the-art navigation systems helping them navigate safely through ports and tight channels, modern cruise ships are some of the fastest vessels on the seas today!