1. What is the Torque Formula?

The torque formula calculates the rotational force produced by a motor or engine based on power output and rotational speed (RPM). It's essential for understanding mechanical performance in various applications.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( P \) — Power (W)
• \( RPM \) — Rotations per minute (rev/min)
• \( \pi \) — Mathematical constant pi (approximately 3.14159)

Explanation: The formula converts power and rotational speed into torque, accounting for the conversion factors between different units of measurement.

3. Importance of Torque Calculation

Details: Accurate torque calculation is crucial for designing mechanical systems, selecting appropriate motors, and ensuring optimal performance in automotive, industrial, and engineering applications.

4. Using the Calculator

Tips: Enter power in watts (W), RPM in revolutions per minute. All values must be valid (power > 0, RPM > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between torque, power, and RPM?
A: Torque and power are directly proportional when RPM is constant. Higher RPM generally requires less torque to produce the same power.

Q2: Why is the constant 60 used in the formula?
A: The constant 60 converts minutes to seconds since power is measured in watts (joules per second) while RPM is in revolutions per minute.

Q3: Can this formula be used for electric motors?
A: Yes, this formula applies to all rotating machinery including electric motors, internal combustion engines, and turbines.

Q4: What are typical torque values for different applications?
A: Torque values vary widely - from fractional Nm in small motors to thousands of Nm in large industrial equipment and vehicle engines.

Q5: How does torque affect mechanical performance?
A: Torque determines the rotational force available for acceleration, lifting loads, and overcoming resistance in mechanical systems.