1. What is a Watts to Torque Calculator?

Definition: This calculator converts power in watts to torque in newton-meters using angular velocity.

Purpose: It helps engineers and technicians determine the torque produced by a motor or system given its power output and rotational speed.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Torque (Newton-meters, Nm)
• \( P \) — Power (Watts, W)
• \( \omega \) — Angular velocity (radians per second, rad/s)

Explanation: Torque is calculated by dividing power by angular velocity. Higher power or lower speed results in greater torque.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, mechanical design, and ensuring systems operate within safe parameters.

4. Using the Calculator

Tips: Enter the power in watts and angular velocity in radians per second. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by 0.10472 (2π/60) to get rad/s. For example, 1000 RPM = 104.72 rad/s.

Q2: What's the difference between torque and power?
A: Torque is rotational force, while power is the rate of doing work. Power = Torque × Angular Velocity.

Q3: Can I use this for electric motors?
A: Yes, this applies to any rotating system where power and speed are known.

Q4: What if I know horsepower instead of watts?
A: Convert horsepower to watts first (1 HP = 745.7 W).

Q5: Why is torque important in engineering?
A: Torque determines a motor's ability to overcome resistance and perform work, crucial for sizing components.