1. What is Motor Torque?

Motor torque is the rotational force produced by an electric motor. It represents the motor's ability to perform work and is a crucial parameter in motor selection and application design.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( Power \) — Mechanical power output in watts (W)
• \( RPM \) — Rotational speed in revolutions per minute
• \( \pi \) — Mathematical constant pi (approximately 3.1416)
• 60 — Conversion factor from minutes to seconds

Explanation: The formula calculates the torque output based on the power and rotational speed of the motor.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for proper motor selection, ensuring the motor can handle the required load, and for designing mechanical systems that rely on motor power.

4. Using the Calculator

Tips: Enter power in watts and RPM in revolutions per minute. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What units are used for torque in this calculation?
A: The result is given in Newton-meters (N·m), which is the standard SI unit for torque.

Q2: Can I use horsepower instead of watts?
A: Yes, but you'll need to convert horsepower to watts first (1 HP = 745.7 W) before using this calculator.

Q3: Why is there a 60 in the numerator?
A: The 60 converts minutes to seconds since power is measured in watts (joules per second) while RPM is in revolutions per minute.

Q4: Does this formula account for motor efficiency?
A: No, this formula calculates theoretical torque. Actual torque may be lower due to efficiency losses in the motor.

Q5: What is the relationship between torque and RPM?
A: For a given power, torque decreases as RPM increases, and vice versa, following an inverse relationship.