Motor Torque to Watts Calculator

Power Calculation Formula:

\[ W = T \times \frac{2 \pi \times RPM}{60} \]

Power (W):

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1. What is the Motor Torque to Watts Calculation?

The Motor Torque to Watts calculation converts mechanical torque and rotational speed (RPM) into electrical power output in watts. This is essential for understanding motor performance and efficiency in various applications.

2. How Does the Calculator Work?

The calculator uses the power calculation formula:

\[ W = T \times \frac{2 \pi \times RPM}{60} \]

Where:

\( W \) — Power in watts
\( T \) — Torque in Newton-meters (Nm)
\( RPM \) — Rotational speed in revolutions per minute
\( 2\pi \) — Conversion factor for angular velocity
\( 60 \) — Conversion factor from minutes to seconds

Explanation: The formula calculates the mechanical power output by multiplying torque by angular velocity, converting RPM to radians per second.

3. Importance of Power Calculation

Details: Accurate power calculation is crucial for motor selection, system design, efficiency analysis, and ensuring proper power delivery in mechanical and electrical systems.

4. Using the Calculator

Tips: Enter torque in Newton-meters (Nm) and RPM in revolutions per minute. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between torque, RPM, and power?
A: Power is directly proportional to both torque and RPM. Higher torque or higher RPM results in greater power output.

Q2: Can this formula be used for all types of motors?
A: Yes, this fundamental relationship applies to electric motors, internal combustion engines, and other rotational power sources.

Q3: What are typical torque values for different motors?
A: Torque values vary significantly based on motor size and type, from fractional Nm for small motors to hundreds of Nm for large industrial motors.

Q4: How does efficiency affect the actual power output?
A: This calculation gives theoretical mechanical power. Actual electrical power input will be higher due to efficiency losses in the motor.

Q5: Can I use this for angular velocity in rad/s instead of RPM?
A: Yes, if you have angular velocity in rad/s, the formula simplifies to W = T × ω (where ω is angular velocity in rad/s).