How Fast Do Cruise Ships Go?
Speed, distance and the ocean miles behind every cruise itinerary.
Get a Free Cruise QuoteHow Fast Do Cruise Ships Go? Speed and Distance at Sea
How fast do cruise ships go? Most large ships cruise at around 20 knots — roughly 23 miles per hour — and few passengers ever notice, because a ship that size moves smoothly. Ocean Miles is about the numbers behind the voyage: speed in knots and miles per hour, how far a ship travels in a day, how far it is from shore, and why the captain sometimes slows down when you might expect a sprint.
Speed matters more to a cruise than it seems. It decides how many ports fit into a week, how long you spend at sea between them, how smooth the night feels and how much fuel the ship burns. Once you understand a few simple units, an itinerary starts to make a lot more sense.
Cruise Speeds at a Glance
| Speed in knots | About mph | About km/h | When you might see it |
|---|---|---|---|
| 10–14 | 12–16 | 19–26 | Leaving or entering port, scenic cruising, short overnight hops |
| 18–22 | 21–25 | 33–41 | Typical sea-day pace for many large cruise ships |
| 24–26 | 28–30 | 44–48 | Catching up after weather, or ocean liner service on the Atlantic |
| About 30 | About 35 | About 56 | Reported top speed of Queen Mary 2, a purpose-built ocean liner |
Conversions are rounded; one knot is one nautical mile per hour, about 1.15 mph or exactly 1.852 km/h.
What You Will Find on Ocean Miles
Cruise ship top speed
Service speed versus top speed, the fastest passenger ship at sea today, and why cruise ships rarely race.
Nautical miles on a cruise
What a nautical mile is, where the knot came from, and how to read the distances in your itinerary.
Ocean miles calculator
Convert knots, mph and km/h, and work out how long a passage takes at a given speed.
Miles per sea day
How far a ship covers in 24 hours, on a transatlantic crossing and between Caribbean ports.
How far from shore?
The 12, 24 and 200 nautical mile zones and what they mean for passengers on board.
Why Ships Rarely Go Flat Out
Fuel use rises steeply with speed, so a few extra knots cost far more than a few extra percent of fuel. Cruise lines plan itineraries so ships can sail at efficient speeds, with enough margin to make up time if weather or a late departure gets in the way. That margin is why you sometimes feel the ship pick up pace on a sea day, and why some nights feel almost motionless.
Comfort plays a part too. A ship running into a head sea can be smoother at a lower speed, and captains adjust for that. The schedule is a promise to arrive on time, not to arrive as fast as possible.
Distances Make the Itinerary
When you look at a cruise, the ports are the headline, but the miles between them shape the days. Two ports a short hop apart allow a long day ashore and a slow, quiet night. A long leg means a sea day, or an early all-aboard time so the ship can make its next arrival. Our sister site Cruise Ship Itineraries explains how to read an itinerary day by day, and Shore Activities covers what to do once you are ashore.
For voyages where the miles are the point — ocean crossings and world cruises — World Cruise News follows the long voyages and how they are planned.
Plan the Voyage, Not Just the Ports
Ocean Miles is part of the Smart Traveler network, led by Mister Cruise. He has sold travel since 1972 and worked full-time in the industry since 1977. He has sold or originated more than $500 million in cruises and has trained more than 500 travel agents.
Want more sea days, fewer early mornings or a true ocean crossing? Our cruise advisors at Mister Cruise read the distances on every itinerary for you and book the voyage that fits. Not a call center. Meet Mister Cruise →
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Cruise Speed: Quick Answers
How fast do cruise ships go?
Most large cruise ships sail at around 20 knots in normal service, which is roughly 23 miles per hour or 37 kilometers per hour. Many can go faster when they need to, and they often go slower to save fuel when the next port is close.
How fast do cruise ships go in mph?
Multiply knots by about 1.15. So 20 knots is roughly 23 mph, and 25 knots is close to 29 mph. Our ocean miles calculator does the conversion for any speed.
How fast do cruise ships go at night?
There is no special night speed. Ships often make the run between two ports overnight, and the captain sets a speed that gets the ship to the next port on time. When ports are close together, that can mean a gentle pace all night.
Why do ships use knots instead of miles per hour?
Because a knot is one nautical mile per hour, and a nautical mile is tied to latitude on a chart, which makes navigation simpler. NOAA Ocean Service explains the history.
Find a Voyage With the Pace You Want
Port-intensive or sea-day heavy, short hops or an ocean crossing: tell us how you like to travel. Our cruise advisors at Mister Cruise will match the itinerary. Free.
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