How Many HP Is a Trolling Motor?

How Many HP Is a Trolling Motor?Trolling motors are commonly rated in pounds of thrust, but many people often wonder about their horsepower (HP) equivalent. While there is no direct conversion between pounds of thrust and horsepower, there is a way to estimate the horsepower rating of a trolling motor.

To calculate the estimated horsepower of a trolling motor, you can multiply the amp draw by the voltage and divide the result by 746. For example, a Newport Vessels NV-Series 55lb Thrust Trolling Motor is estimated to be around 0.84 horsepower. This formula can be used to calculate the estimated horsepower of other trolling motors as well.

Factors Affecting Trolling Motor Power

When it comes to trolling motor power, several factors come into play that affect its performance. Understanding these factors will help you choose the right trolling motor for your needs. Here, we will discuss some of the key factors that determine the power of a trolling motor.

Thrust vs Horsepower

Thrust is the measure of the motor’s power and is typically rated in pounds (lbs). It indicates the force with which the motor propels the boat through the water. Higher thrust results in more power and better maneuverability. It is important to match the thrust of the trolling motor to the size and weight of your boat to ensure optimal performance.

Boat Weight and Hull Design

The weight of your boat plays a crucial role in determining the power requirements of the trolling motor. As a general rule of thumb, you should have at least 2 lbs of thrust for every 100 lbs of boat weight. Additionally, the shape and design of your boat’s hull also affect the power needed. Deeper V hulls tend to create more drag, requiring more power from the trolling motor to overcome resistance.

By considering these factors, you can select a trolling motor with the appropriate power to meet your specific needs. Matching the thrust to your boat’s weight and hull design will ensure efficient and effective performance on the water, allowing you to navigate smoothly and enjoy your fishing experience.

Thrust (lbs) Horsepower Equivalent
Trolling Motor A 55 0.84 HP
Trolling Motor B 80 1.21 HP
Trolling Motor C 115 1.74 HP

Table: Thrust and Horsepower Equivalent of Different Trolling Motors

This table provides an example of the relationship between thrust and horsepower equivalent for different trolling motors. As you can see, as the thrust increases, so does the horsepower equivalent. This information can help you make an informed decision when selecting a trolling motor for your boat.

Choosing the Right Trolling Motor for Your Boat

When selecting a trolling motor for your boat, it’s crucial to consider the appropriate amount of thrust needed. The amount of thrust required depends on various factors, including the size of your boat, fishing conditions, and desired performance. While recommendations based on boat length are available, it’s essential to evaluate these additional factors to ensure optimal power and control.

The first consideration is matching the motor power to your boat size. Generally, a rule of thumb is to have at least 2 pounds of thrust for every 100 pounds of boat weight. This guideline helps to ensure that the motor has enough power to maneuver the boat efficiently. If your boat is on the heavier side, you may want to opt for a higher thrust motor to compensate for the added weight.

Fishing conditions also play a significant role in selecting the right trolling motor. If you frequently fish in areas with strong currents or fast-moving water, it’s advisable to choose a motor with higher thrust. This ensures that you have enough power to navigate through challenging conditions and maintain control of your boat.

Additionally, considering your desired performance is important. If you prefer a trolling motor with a faster speed or plan to carry heavy loads on your boat, you might want to opt for a motor with higher thrust. This will provide the necessary power to achieve the desired performance and handle any additional weight on board.

By carefully assessing your boat size, fishing conditions, and desired performance, you can choose the right trolling motor that matches your specific needs. Finding the perfect balance of thrust and power will enhance your fishing experience and provide greater control over your boat’s movement.

Voltage and Thrust Relationship

Trolling motors come in various voltage options, including 12v, 24v, and 36v. The voltage of a trolling motor has a direct impact on its thrust, which refers to the motor’s power and ability to propel the boat through water. Generally, higher voltage motors offer increased thrust, providing more power for navigating different water conditions.

For example, a 12v trolling motor typically has a thrust rating of 55 lbs or less. On the other hand, a 24v motor can offer a thrust ranging from over 55 lbs up to 80 lbs. If you require even more power, a 36v trolling motor can provide a thrust of over 80 lbs, reaching up to approximately 115 lbs. The higher the voltage, the greater the thrust, allowing for better maneuverability and control.

When considering the voltage options for your trolling motor, it’s important to take into account the specific needs of your boating activities. Higher voltage motors may require larger battery systems and can offer longer run times due to their increased power capacity. However, it’s crucial to also consider the trade-off between thrust and battery run time to ensure that you have an appropriate balance for your fishing trips.

Table: Voltage and Thrust Comparison

Voltage Thrust Range (lbs)
12v Up to 55 lbs
24v Over 55 lbs up to 80 lbs
36v Over 80 lbs up to approximately 115 lbs

Choosing the right voltage for your trolling motor depends on your specific boating needs, such as the size and weight of your boat, fishing conditions, and desired performance. Higher voltage motors can provide increased thrust, allowing you to navigate rough waters, currents, and wind with ease. They also offer the potential for longer run times, ensuring that your trolling motor will last throughout your fishing excursions. Consider these factors carefully when selecting the appropriate voltage for your trolling motor to enhance your overall boating experience.


Trolling motor power is an essential factor to consider when equipping your boat for fishing. While there is no direct conversion from pounds of thrust to horsepower, you can estimate the horsepower rating by using the amp draw and voltage. By selecting the appropriate trolling motor power, you can enhance your fishing experience and have better control over your boat’s movement.

Choosing the right trolling motor involves considering various factors. Take into account your boat’s weight and hull design, as these impact the power requirements. Additionally, fishing conditions play a role in determining the necessary motor power. If you frequently navigate fast-moving waters or encounter strong currents, opting for a higher thrust motor will ensure adequate power in all conditions.

The relationship between voltage and thrust is another crucial aspect to consider. Higher voltage motors provide increased thrust, giving you more power for maneuvering your boat. It’s important to also consider the run time of your trolling motor when selecting the voltage. Higher voltage options can offer longer run times, allowing for extended fishing trips without worrying about battery life.

In summary, when choosing a trolling motor, carefully assess factors such as thrust, boat weight, hull design, and fishing conditions. This will help you select the right amount of power to suit your specific needs. With the appropriate trolling motor power, you can enhance your fishing experience, ensuring greater control and maneuverability on the water.

Richard Dodds
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