Watts To Electric Horsepower Conversion


1 W = 0.001340482574 ehp

Want to convert from electric horsepower to watts instead?

Disclaimer: We've spent hundreds of hours building and testing our calculators and conversion tools. However, we cannot be held liable for any damages or losses (monetary or otherwise) arising out of or in connection with their use. Full disclaimer.

How to convert watts to electric horsepower (W to ehp)

The formula for converting watts to electric horsepower is: ehp = W × 0.001340482574. To calculate the watt value in electric horsepower first substitute the watt value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 watt in electric horsepower we follow these steps:

ehp = W × 0.001340482574

ehp = 1 × 0.001340482574

ehp = 0.001340482574

In other words, 1 watt is equal to 0.001340482574 electric horsepower.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 3 watts to electric horsepower is:

  1. Understand the conversion formula: ehp = W × 0.001340482574
  2. Substitute the required value. In this case we substitute 3 for W so the formula becomes: ehp = 3 × 0.001340482574
  3. Calculate the result using the provided values. In our example the result is: 3 × 0.001340482574 = 0.004021447722 ehp

In summary, 3 watts is equal to 0.004021447722 electric horsepower.

Converting electric horsepower to watts

In order to convert the other way around i.e. electric horsepower to watts, you would use the following formula: W = ehp × 746. To convert electric horsepower to watts first substitute the electric horsepower value into the above formula, and then execute the calculation. If we wanted to calculate 1 electric horsepower in watts we follow these steps:

W = ehp × 746

W = 1 × 746

W = 746

Or in other words, 1 electric horsepower is equal to 746 watts.

Conversion Unit Definitions

What is a Watt?

A watt (W) is a unit of power that measures the rate at which energy is transferred, used, or produced. It represents the amount of energy consumed or generated per unit of time. Here's an example to help illustrate the concept of a watt:
Consider a light bulb with a power rating of 60 watts. This means that the light bulb consumes or emits energy at a rate of 60 joules per second. In simpler terms, it indicates that the light bulb uses 60 watts of power to produce light.
If you were to leave this light bulb turned on for one hour, it would consume a total of 60 watts multiplied by 3600 seconds (the number of seconds in an hour), which equals 216,000 joules or 216 kilojoules of energy. This demonstrates how power consumption, measured in watts, can be related to the total energy usage over a specific time period.
The watt is a fundamental unit of power in the International System of Units (SI) and is widely used in various applications. It provides a common basis for measuring and comparing the power ratings of electrical appliances, devices, machinery, and systems.
In practical terms, wattage is commonly seen on electrical appliances, such as laptops, refrigerators, air conditioners, and electric motors. It helps consumers understand the power requirements or capabilities of these devices and allows for efficient energy management and comparison between different options.
In summary, a watt is a unit of power that represents the rate at which energy is transferred or used. It is denoted by the symbol W. The example of a 60-watt light bulb demonstrates how wattage can be used to quantify power consumption or generation in various electrical devices or systems.

What is a Electric Horsepower?

Electric horsepower (ehp) is a unit of power that specifically refers to the power output of an electric motor. It measures the rate at which electrical energy is converted into mechanical work or power. Electric horsepower is defined as 746 watts, which is equivalent to one mechanical horsepower (hp).
To provide an example of electric horsepower, let's consider an electric motor with a power rating of 10 electric horsepower. This means that the motor is capable of converting electrical energy at a rate equivalent to 10 electric horsepower or 7.46 kilowatts (since 1 electric horsepower is equal to 746 watts).
For instance, imagine an industrial machine powered by the aforementioned 10 electric horsepower motor. The motor's power output determines the machine's ability to perform tasks, such as driving conveyor belts, operating pumps, or rotating equipment.
It's worth noting that the power output of an electric motor may not be equal to its power input due to various factors, including motor efficiency and losses. However, the electric horsepower rating provides a standardized measure to compare the power output capabilities of electric motors.
Electric horsepower is commonly used in various industries, including manufacturing, transportation (electric vehicles), and agriculture, where electric motors play a crucial role in powering machinery and equipment.
In summary, electric horsepower (ehp) is a unit of power that specifically refers to the power output of an electric motor. It represents the rate at which electrical energy is converted into mechanical work. The example of a 10 electric horsepower motor illustrates how electric horsepower is used to quantify the power output of electric motors in various applications.

Watts To Electric Horsepower Conversion Table

Below is a lookup table showing common watts to electric horsepower conversion values.

Watt (W)Electric Horsepower (ehp)
1 W0.001340482574 ehp
2 W0.002680965148 ehp
3 W0.004021447722 ehp
4 W0.005361930296 ehp
5 W0.00670241287 ehp
6 W0.008042895444 ehp
7 W0.009383378018 ehp
8 W0.010723860592 ehp
9 W0.012064343166 ehp
10 W0.01340482574 ehp
11 W0.014745308314 ehp
12 W0.016085790888 ehp
13 W0.017426273462 ehp

Other Common Watt Conversions

Below is a table of common conversions from watts to other power units.

1 watt in milliwatts1000 mW
1 watt in kilowatts0.001 kW
1 watt in megawatts0.000001 MW
1 watt in gigawatts0.000000001 GW
1 watt in BTU/hr3.412141635133 BTU/hr