1. What is the kW to Torque Formula?

The kW to Torque formula calculates the torque produced by an engine or motor based on its power output in kilowatts and rotational speed in RPM. This is essential for understanding mechanical performance in various applications.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( kW \) — Power in kilowatts
• \( RPM \) — Rotational speed in revolutions per minute
• 9549.3 — Conversion factor (derived from 60,000/(2π))

Explanation: The formula converts power (energy per unit time) to torque (rotational force) by accounting for the rotational speed.

3. Importance of Torque Calculation

Details: Torque is crucial for understanding an engine's or motor's ability to perform work, affecting acceleration, towing capacity, and overall mechanical performance.

4. Using the Calculator

Tips: Enter power in kilowatts and rotational speed in RPM. Both values must be positive numbers. The calculator will compute the torque in Newton-meters (Nm).

5. Frequently Asked Questions (FAQ)

Q1: Why is 9549.3 used in the formula?
A: It's the conversion factor derived from unit conversions (60,000/(2π)) to convert kW and RPM to Nm.

Q2: What's the difference between torque and power?
A: Torque measures rotational force, while power measures how quickly work is done (torque × angular velocity).

Q3: Can I use this for electric motors?
A: Yes, the formula works for any rotating machinery where power and speed are known.

Q4: How does torque relate to vehicle performance?
A: Higher torque at lower RPM generally means better acceleration and towing capability.

Q5: What are typical torque values?
A: Varies greatly - small motors might produce 1-10 Nm, while large engines can produce hundreds or thousands of Nm.