Selecting the right motor size for your sailboat is important to ensure smooth navigation and an enjoyable sailing experience. The motor isn’t just a backup for when the wind disappears; it’s an essential tool for docking, maneuvering in tight spaces, or even propelling your boat in less-than-ideal weather. This guide will help you understand the key considerations when choosing the perfect motor size for your sailboat.
Factors To Consider
The size and type of your sailboat significantly impact the motor size you need.
Boat Length
Boat length is a major determining factor. Sailboats under 25 feet often perform well with smaller motors in the three to eight-horsepower range. However, as boat size increases, so does the need for a larger motor to maintain proper control and maneuverability.
Displacement
Another crucial factor is displacement, which refers to the weight and draft of your sailboat when fully loaded. Heavier boats require motors with more horsepower to overcome drag and provide reliable operation, especially when sailing against strong currents or wind. A lightly-built 26-foot sailboat will need a very different motor than a similarly sized, heavily-built cruiser.
Sailing Conditions
You’ll also want to take your sailing conditions into account. Will you mostly sail calm inland waters, or is sailing through strong ocean currents part of your routine? Open waters often call for motors with more power to battle rougher conditions, while casual, near-shore cruising doesn’t demand as much output.
Motor Type
Lastly, consider whether you’re going for a traditional gas motor or exploring electric sailboat motors as an option. Electric sailboat motors are efficient, quieter, and environmentally friendly. Electric motors can be an excellent choice for sailboat owners prioritizing sustainability or long-term cost savings.
Comparing Motor Sizes
To simplify the decision process, follow general guidelines based on sailboat size. Smaller boats, such as those under 20 feet, usually require two or five-horsepower motors. These motors will generally suffice for light displacement and calm waters.
Mid-sized boats between 20 and 30 feet perform better with motors in the 8 to 15 horsepower range. Here, displacement becomes more important. Boats with moderate to heavy displacement may lean toward the upper end of the horsepower range for reliability and flexibility.
For sailboats above 30 feet, focus on motors ranging from 20 to 30 horsepower or more, depending on the boat’s overall weight and sailing conditions. Larger sailboats with heavy displacement or frequent use in rough waters need the extra power to maneuver effectively and confidently.
Closing Thoughts
Choosing the right motor size for your sailboat requires some research, but the payoff is a better-performing boat and more enjoyable days on the water. Assess your boat’s size, displacement, and sailing conditions, and consider whether an electric motor might suit your needs.





