1. What is the Nm to Watts Conversion?

The Nm to Watts conversion calculates mechanical power from torque and rotational speed. It's essential in engineering applications involving motors, engines, and rotating machinery.

2. How Does the Calculator Work?

The calculator uses the equation:

Where:

• \( Nm \) — Torque in newton meters
• \( rpm \) — Rotational speed in revolutions per minute
• \( W \) — Power in watts
• \( 2\pi/60 \) — Conversion factor from rpm to radians per second

Explanation: Power is the product of torque and angular velocity. The equation converts rpm to rad/s and multiplies by torque to get power in watts.

3. Importance of Power Calculation

Details: Accurate power calculation is crucial for motor selection, energy efficiency analysis, and mechanical system design.

4. Using the Calculator

Tips: Enter torque in Nm and rotational speed in rpm. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Nm and watts?
A: Nm measures torque (rotational force), while watts measure power (rate of energy transfer).

Q2: How do I convert watts back to Nm?
A: Rearrange the equation: \( Nm = W \times 60 / (rpm \times 2\pi) \).

Q3: What are typical torque values for electric motors?
A: Small motors might produce 0.1-1 Nm, while industrial motors can produce hundreds of Nm.

Q4: Does this equation work for any rotational speed?
A: Yes, as long as the speed is in rpm and torque is in Nm, the equation is valid.

Q5: Why is the conversion factor 2π/60?
A: It converts revolutions per minute (rpm) to radians per second (rad/s), the SI unit for angular velocity.